Properties of the Number 81152

Eighty-One Thousand One Hundred Fifty-Two

Basics

Value: 81151 → 81152 → 81153

Parity: even

Prime: No

Previous Prime: 81131

Next Prime: 81157

Digit Sum: 17

Digital Root: 8

Palindrome: No

Factorization: 2 ⁸ × 317

Divisors: 1, 2, 4, 8, 16, 32, 64, 128, 256, 317

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 10011110100000000

Octal: 236400

Duodecimal: 3AB68

Hexadecimal: 13d00

Square: 6585647104

Square Root: 284.8719010362377

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

Primitive terms of A388271. A388272

Number of 2 X 2 nonsingular matrices having all terms in {-n,...,0,...,n}. A211149

Number of walks within N² (the first quadrant of Z²) starting at (0,0), ending on the vertical axis and consisting of n steps taken from {(-1, 0), (-1, 1), (0, -1), (0, 1), (1, -1), (1, 0)}. A151483

Triangle read by rows: T(n,k) = number of plateau polycubes of width n and volume k. A232483

Number of even cycles in range [A014137(2n)..A014138(2n)] of permutation A057505/A057506. A81152

Least positive integer k <= n with (2^k + k) * n - 1 prime, or 0 if such a number k does not exist. A231776

Number of nX5 0..2 arrays with every 1 immediately preceded by 0 to the left or above, and every 2 immediately preceded by both a 1 and a 0. A203368