Properties of the Number 12012

Twelve Thousand Twelve

Basics

Value: 12011 → 12012 → 12013

Parity: even

Prime: No

Previous Prime: 12011

Next Prime: 12037

Digit Sum: 6

Digital Root: 6

Palindrome: No

Factorization: 2 ² × 3 × 7 × 11 × 13

Divisors: 1, 2, 3, 4, 6, 7, 11, 12, 13, 14

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

8509 Try Today's Challenge

Representations

Binary: 10111011101100

Octal: 27354

Duodecimal: 6B50

Hexadecimal: 2eec

Square: 144288144

Square Root: 109.59927007056206

Classification

Fibonacci: No

Bell Number: No

Factorial Number: No

Regular Number: No

Perfect Number: No

Special

Kaprekar Constant: No

Munchausen Constant: No

Armstrong Number: No

Kaprekar Number: No

Catalan Number: No

Vampire Number: No

Taxicab Number: No

Super Prime: No

Friedman Number: No

Fermat Number: No

Cullen Number: No

OEIS Sequences

Number of partitions of n into relatively prime parts. Also aperiodic partitions. A837

a(n) = (2n+1)!/n!². A2457

Swinging factorial, a(n) = 2^{n-(n mod 2})*∏_k=1..n k^(-1^(k+1)). A56040

T(n,k) = binomial(n,k)*binomial(n+k,k), 0 <= k <= n, triangle read by rows. A63007

a(n) = (2·n+3)!/(6·n!*(n+1)!). A2802

Array T(i,j) = binomial(-1/2-i,j)*(-4)^j, i,j >= 0 read by antidiagonals going down. A46521

Triangle read by rows: T(n,k) = C(n+k,n)*C(n,k)/(k+1), for n >= 0, k = 0..n. A88617

Triangle read by rows. A generalization of unsigned Lah numbers, called L[4,1]. A48854

Triangle of coefficients of Legendre polynomials P_n (x). A8316

a(n+1) = a(n)/n if n∣a(n) else a(n)*n, a(1) = 1. A8336