Properties of the Number 91025

Ninety-One Thousand Twenty-Five

Basics

Value: 91024 → 91025 → 91026

Parity: odd

Prime: No

Previous Prime: 91019

Next Prime: 91033

Digit Sum: 17

Digital Root: 8

Palindrome: No

Factorization: 5 ² × 11 × 331

Divisors: 1, 5, 11, 25, 55, 275, 331, 1655, 3641, 8275

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

5184 Try Today's Challenge

Representations

Binary: 10110001110010001

Octal: 261621

Duodecimal: 44815

Hexadecimal: 16391

Square: 8285550625

Square Root: 301.7034968309118

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

a(n) = floor(C(n,4)/5). A11795

Number of partitions of n*(n+1)/2 with at most four parts that can be obtained from grouping (with parentheses) a permutation of the sum 1+2+...+n. A160438

Fermat coefficients. A970

Maximal number of pairwise relatively prime polynomials of degree n over GF(2). A1115

Smallest positive k such that φ(1+k·2^m) <= φ(k·2^m) for all m = n (mod 12), where φ is Euler's totient function. A91025