Properties of the Number 87918

Eighty-Seven Thousand Nine Hundred Eighteen

Basics

Value: 87917 → 87918 → 87919

Parity: even

Prime: No

Previous Prime: 87917

Next Prime: 87931

Digit Sum: 33

Digital Root: 6

Palindrome: No

Factorization: 2 × 3 × 14653

Divisors: 1, 2, 3, 6, 14653, 29306, 43959, 87918

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 10101011101101110

Octal: 253556

Duodecimal: 42A66

Hexadecimal: 1576e

Square: 7729574724

Square Root: 296.5096963001379

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

T(n,k) = number of (n+1) X (k+1) 0..2 arrays with every 2 X 2 subblock having the same number of clockwise edge increases as its horizontal neighbors and the same number of counterclockwise edge increases as its vertical neighbors. A205917

Number of (n+1) X 4 0..2 arrays with every 2 X 2 subblock having the same number of clockwise edge increases as its horizontal neighbors and the same number of counterclockwise edge increases as its vertical neighbors. A205912

Number of (n+1) X (n+1) 0..2 arrays with every 2 X 2 subblock having the same number of clockwise edge increases as its horizontal neighbors and the same number of counterclockwise edge increases as its vertical neighbors. A205910

Let A(n) be the matrix in the group GL(n,2) such that for 1<=i, j<=n: A[i,j] = 1 if i+j = n+1 A[i,j] = 0 if i+j ≠ n+1. a(n) is the size of the conjugacy class of A(n) in GL(n,2). A87918

Number of length n 1..(3+1) arrays with every leading partial sum divisible by 2, 3 or 5. A254822