Properties of the Number 15956

Fifteen Thousand Nine Hundred Fifty-Six

Basics

Value: 15955 → 15956 → 15957

Parity: even

Prime: No

Previous Prime: 15937

Next Prime: 15959

Digit Sum: 26

Digital Root: 8

Palindrome: No

Factorization: 2 ² × 3989

Divisors: 1, 2, 4, 3989, 7978, 15956

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 11111001010100

Octal: 37124

Duodecimal: 9298

Hexadecimal: 3e54

Square: 254593936

Square Root: 126.31706139710502

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 permutations p on the set [n] with the properties that abs(p(i)-i) <= 3 for all i and p(1) <= 3. A2527

Number of integer compositions of n with all distinct 0-prepended first differences. A389601

Matrix square of triangle A104980. A104988

Number of n-step point-symmetrical self-avoiding walks on the square lattice. A323189

Numbers n such that A324187(n) = 0. A324199

a(n) = A255295(2ⁿ-1). A255296

Number of partitions of 2n into distinct parts whose bitwise XOR equals 0. A307506

Floor[ prime(n)^prime(n)/n], prime(n) = A000040(n). A93862

Number of length 3 1..(n+1) arrays with every leading partial sum divisible by 2 or 3. A257065

Number of active (ON, black) cells at stage 2ⁿ-1 of the two-dimensional cellular automaton defined by "Rule 54", based on the 5-celled von Neumann neighborhood. A270023