Properties of the Number 91945

Ninety-One Thousand Nine Hundred Forty-Five

Basics

Value: 91944 → 91945 → 91946

Parity: odd

Prime: No

Previous Prime: 91943

Next Prime: 91951

Digit Sum: 28

Digital Root: 1

Palindrome: No

Factorization: 5 × 7 × 37 × 71

Divisors: 1, 5, 7, 35, 37, 71, 185, 259, 355, 497

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10110011100101001

Octal: 263451

Duodecimal: 45261

Hexadecimal: 16729

Square: 8453883025

Square Root: 303.22433939247026

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

Denominators a(n) of the fractions ∑_n>=1 {(-1)ⁿ⁺¹*n/a(n)} = 1/a(1) - 2/a(2) + 3/a(3) - ... such that the sum has the concatenation of these denominators as decimal part. Case a(1) = 3. A320023

a(n) = 11ⁿ - n⁸. A24135

Numbers n such that there is no k, 0 <= k < n, satisfying A002487(k) = A002487(n). A91945

a(n) = 1 if the n-th prime is the sum of three squares, otherwise a(n) = 0. A255887