- published: 28 Apr 2015
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21 (twenty-one) is the natural number following 20 and preceding 22.
Twenty-one is the fifth discrete Semiprime and the second in the (3.q) family. With 22 it forms the second discrete Semiprime pair. As it is a semiprime with both its prime factors being Gaussian primes, 21 is then a Blum integer.
Twenty-one is a Fibonacci number, a Harshad number, a Motzkin number, a triangular number and an octagonal number, as well as a composite number, its proper divisors being 1, 3 and 7.
21 is the sum of the first six natural numbers (1+2+3+4+5+6=21).
21 has an aliquot sum of 11 though it is the second composite number found in the 11-aliquot tree with the abundant square prime 18 being the first such member. Twenty-one is the first number to be the aliquot sum of three numbers 18, 51, 91.
21 appears in the Padovan sequence, preceded by the terms 9, 12, 16 (it is the sum of the first two of these).
The sum of divisors for the integers 1 through 6 is 21.
21 is a repdigit in base 4 (111).
21 is the smallest natural number that is not close to a power of 2, 2^n, where the range of closeness is +- n.
Justin Drew Bieber ( /ˈbiːbər/ BEE-bər, born March 1, 1994) is a Canadian Pop/R&B singer-songwriter, musician, and actor. Bieber was discovered in 2008 by Scooter Braun, who came across Bieber's videos on YouTube and later became his manager. Braun arranged for him to meet with Usher in Atlanta, Georgia, and Bieber was soon signed to Raymond Braun Media Group (RBMG), a joint venture between Braun and Usher, and then to a recording contract with Island Records offered by L.A. Reid. Bieber's debut single, "One Time", was released in 2009 and peaked in the top twenty in Canada and charted in the top thirty in several international markets. His debut album, the seven-track EP My World, followed in November 2009, and was soon certified platinum in the United States. He became the first artist to have seven songs from a debut album chart on the Billboard Hot 100.
Chorus x2
And my baby girl hit me like,
(I’ll be comin’ home x2)
And I told her I’m right here for her
Maybe happiness ain't in me, and some say it’s far away,
And I ain't never been right; at least that’s what my father say,
Honestly, it bothers me, but I ain’t got the heart to say,
*** I don’t give a fuck about you in all honesty,
Maybe you think I do, maybe you got confused,
Maybe you saw the love I had and you got that misconstrued,
So Imma make it clear and this here might get you pissed,
Whatever love did exist, it bled outta my wrist,
From the cuts that you caused, that’s not mine it’s you yours,
I admit a few flaws, but look behind truths door,
I mean you lied and you cheated, you deceived you mistreated,
When our arguments got heated, you figured his dick was needed,
And that’s the girl I sleep with, that’s the one I’m supposed to marry,
That’s the one I eat with, that’s the one who met my family,
But you was creepin’; you wonder why I’m fuckin' angry?
I gave you everything and look at the shit you fuckin’ hand me…
(Chorus x2)
What I don’t understand is you act shocked that I don’t wanna speak,
Shocked that I don’t wanna talk, shocked that I don’t wanna meet,
How hard is it to understand the concept of betrayal?
When you stabbed me in the heart to the point it was almost fatal,
I mean I took you when you was 15, now it’s time we 21
That’s 6 years nigga, enough time to bond with any one,
We was on and off for a year and you said you had confusion,
I did everything to make us work; now I’m feelin' stupid,
I felt your front was an illusion,
I ain’t believe the words comin’ out your mouth,
Probably cause it was infested by that cum comin' out your mouth,
From the nigga you was suckin' down south,
Thought I wouldn’t but I fuckin’ found out,
I was gonna have his brains drowned out, with the long snout, but I calmed
Down...
Now I’m so heated, till I realized you weren’t needed,
Till I realized all you did was infest my life like a weed bitch,
I can’t believe I never seen it, all my niggas said you was cheatin',
And I really ain’t believe it till I took your phone like what am I
Readin'?
You tellin' him you love him, textin' baby I miss you,
Saying you can’t wait to fuck, I’m like damn how did I kiss you?
And when I found out you acted like it was my fault,
I mean you such a hoe you can’t even admit when you got caught,
No lesson was taught, still you text me everyday bitch,
Please understand I don’t give a fuck about what you say bitch,
Why you think I don’t reply, I don’t pick up, I don’t ring ya,
Cause you’re nothing to me, you’re literally a stranger…
(Chorus x2)
I hear you talkin' shit gotta problem with my new girl right,
Think we won’t last? You ain’t gotta worry that’s not your life,
You don’t know a third, not even a 4th like,
I keep her so close, yeah nigga we so tight,
She sees something in me that I don’t see in myself,
Not the money of the car, she good with me and my self,
I met her unplanned, yup, just being myself,
She was so willing and I was needin' some help,
She deals with my flaws, and does so with a smile,
Most women won’t be able to walk in her shoes for a mile,
And y'all ain’t know what she’s been through, yet still so passive,
So kind warm hearted, deals with my madness,
She ain’t ask for a thing, but I’ll gladly hand her the globe,
It’s the shit that’s on my mind, it’s the shit that she ain’t know,
It’s the shit that I don’t tell; it’s the shit that I don’t show,
Yet, keep it on the low man, don’t tell a soul man….shhh…
(Chorus x2)