Properties of the Number 85705

Eighty-Five Thousand Seven Hundred Five

Basics

Value: 85704 → 85705 → 85706

Parity: odd

Prime: No

Previous Prime: 85703

Next Prime: 85711

Digit Sum: 25

Digital Root: 7

Palindrome: No

Factorization: 5 × 61 × 281

Divisors: 1, 5, 61, 281, 305, 1405, 17141, 85705

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10100111011001001

Octal: 247311

Duodecimal: 41721

Hexadecimal: 14ec9

Square: 7345347025

Square Root: 292.7541630788536

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 of continued fraction convergents to sqrt(521). A41997

a(n) = ceiling(n*φ¹⁷), where φ is the golden ratio, A001622. A4972

Indices of pentagonal numbers that are one-fifth of another one. A385616

Integers expressible as (x³ + y³ + z³)/(x·y*z) with nonzero integers x, y and z. Alternatively, integers expressible as a/b + b/c + c/a with nonzero integers a, b and c. A85705

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