Properties of the Number 91057

Ninety-One Thousand Fifty-Seven

Basics

Value: 91056 → 91057 → 91058

Parity: odd

Prime: No

Previous Prime: 91033

Next Prime: 91079

Digit Sum: 22

Digital Root: 4

Palindrome: No

Factorization: 23 × 37 × 107

Divisors: 1, 23, 37, 107, 851, 2461, 3959, 91057

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10110001110110001

Octal: 261661

Duodecimal: 44841

Hexadecimal: 163b1

Square: 8291377249

Square Root: 301.75652437022796

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

Expansion of 1/(1+x²-2·x³). A77912

Indices of triangular numbers (A000217) which are also centered heptagonal numbers (A069099). A253878

Expansion of 1/(1+x²+2·x³). A77963

a(0) = a(1) = a(2) = 1, for n > 2, a(n) = a(n-1) + a(n-k) + k with k = 3. A362256

Number of n X n matrices over symbol set {1,...,n²} equivalent under any permutation of row, columns or the symbol set. A91057