Properties of the Number 91125

Ninety-One Thousand One Hundred Twenty-Five

Basics

Value: 91124 → 91125 → 91126

Parity: odd

Prime: No

Previous Prime: 91121

Next Prime: 91127

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 3 ⁶ × 5 ³

Divisors: 1, 3, 5, 9, 15, 25, 27, 45, 75, 81

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10110001111110101

Octal: 261765

Duodecimal: 44899

Hexadecimal: 163f5

Square: 8303765625

Square Root: 301.8691769624716

Classification

Fibonacci: No

Bell Number: No

Factorial Number: No

Regular Number: Yes

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

Product of divisors of n. A7955

Odd cubes: a(n) = (2·n + 1)³. A16755

Triangle read by rows: coefficients T(n,k) of a binomial decomposition of 2ⁿ-1 as Sum(k=0..n)T(n,k)*binomial(n,k). A244126

Numbers whose prime factors are 3 and 5. A33849

Numbers k such that Mordell's equation y² = x³ + k has exactly 1 integral solution. A179145

a(n)= n^ω(n). A176029

Numbers k such that Mordell's equation y² = x³ - k has exactly 1 integral solution. A179163

Cubes expressible as the sum of two nonzero squares in at least one way. A50803

a(n) = (6·n + 3)³. A16947

Cubes of triangular numbers: (n*(n+1)/2)³. A59827