Properties of the Number 87901

Eighty-Seven Thousand Nine Hundred One

Basics

Value: 87900 → 87901 → 87902

Parity: odd

Prime: No

Previous Prime: 87887

Next Prime: 87911

Digit Sum: 25

Digital Root: 7

Palindrome: No

Factorization: 11 × 61 × 131

Divisors: 1, 11, 61, 131, 671, 1441, 7991, 87901

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

7925 Try Today's Challenge

Representations

Binary: 10101011101011101

Octal: 253535

Duodecimal: 42A51

Hexadecimal: 1575d

Square: 7726585801

Square Root: 296.48102806081874

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 X k 0..1 arrays with every element equal to 1, 2, 3, 4 or 5 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero. A302953

Number of scalene triangles, distinct up to congruence, on an n X n grid (or geoboard). A190313

Strong pseudoprimes to base 58. A20284

Number of n X 5 0..1 arrays with every element equal to 1, 2, 3, 4 or 5 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero. A302950

Number of 4Xn 0..1 arrays with every element equal to 1, 2, 3, 4 or 5 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero. A302955

a(n) = sum of numbers formed using the digits of next n numbers. A81993

Twin primes associated with A087900. A87901