Properties of the Number 61585

Sixty-One Thousand Five Hundred Eighty-Five

Basics

Value: 61584 → 61585 → 61586

Parity: odd

Prime: No

Previous Prime: 61583

Next Prime: 61603

Digit Sum: 25

Digital Root: 7

Palindrome: No

Factorization: 5 × 109 × 113

Divisors: 1, 5, 109, 113, 545, 565, 12317, 61585

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1111000010010001

Octal: 170221

Duodecimal: 2B781

Hexadecimal: f091

Square: 3792712225

Square Root: 248.16325271885037

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

Numbers k such that the continued fraction for sqrt(k) has odd period and if the last term of the periodic part is deleted the two central terms are both 55. A31643

a(n) = 2^{2^prime(n} - 1) - 1. A77586

a(1) = 1, a(n)= number obtained by replacing each digit of a(n-1) with seven times its value. A61585