Properties of the Number 31896

Thirty-One Thousand Eight Hundred Ninety-Six

Basics

Value: 31895 → 31896 → 31897

Parity: even

Prime: No

Previous Prime: 31891

Next Prime: 31907

Digit Sum: 27

Digital Root: 9

Palindrome: No

Factorization: 2 ³ × 3 ² × 443

Divisors: 1, 2, 3, 4, 6, 8, 9, 12, 18, 24

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 111110010011000

Octal: 76230

Duodecimal: 16560

Hexadecimal: 7c98

Square: 1017354816

Square Root: 178.5945127936466

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

Triangle T(n, k) = T(n-1, k-1) + 3·T(n-1, k) + 2·T(n-1, k-1), with T(n,1) = T(n, n) = 1, read by rows. A142596

Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 419", based on the 5-celled von Neumann neighborhood. A272047

Multiplicity of highest weight (or singular) vectors associated with character chi₁₇₄ of Monster module. A34562

Number of ways of placing non-attacking knights on an n X n chessboard symmetric under 180 degree rotation. A131180

Number of 4 X 4 matrices in Hermite normal form with determinant n. A389108

Odd squares: a(n) = (2n+1)². Also centered octagonal numbers. A16754

Sum of first n cubes; or n-th triangular number squared. A537

5-smooth numbers, i.e., numbers whose prime divisors are all <= 5. A51037

Centered square numbers: a(n) = 4·n² + 4·n + 2. A69894

Numbers which when chopped into two parts with equal length, added and squared result in the same number. A238237