Properties of the Number -15912

Fifteen Thousand Nine Hundred Twelve

Basics

Value: -15913 → -15912 → -15911

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 2 ³ × 3 ² × 13 × 17

Divisors: 1, 2, 3, 4, 6, 8, 9, 12, 13, 17

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -11111000101000

Octal: -37050

Duodecimal: -9260

Hexadecimal: -3e28

Square: 253191744

Square Root: 126.14277624977183

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

a(n) = (2ⁿ/n!) * ∏_k=0..n-1 (4·k - 3). A4983

a(n) = lcm{1,2,...,n} / swinging_factorial(n) = A003418(n) / A056040(n). A180000

Integers that are Rhonda numbers to base 16. A100975

Sorted positions of first appearances in A057820, the sequence of first differences of prime-powers. A376340

Numbers k such that σ(x) = k has exactly 9 solutions. A60665

Normalized triangle of odd numbered entries of even numbered rows of Pascal's triangle A007318. A91043

a(n) = σ(10ⁿ - 1), where σ(n) is the sum of positive divisors of n. A102146

Number of reversible strings with n-1 beads of 2 colors. 7 beads are black. String is not palindromic. A32094

Twelfth column of Losanitsch's triangle A034851 (formatted as lower triangular matrix). A62136

Triangle read by rows in which row n gives coefficients of polynomial R_n(y) that satisfies R_n(1/3) = 9ⁿ, where R_n(y) forms the initial (n+1) terms of g.f. A097191(y)ⁿ⁺¹. A97190