Properties of the Number 61789

Sixty-One Thousand Seven Hundred Eighty-Nine

Basics

Value: 61788 → 61789 → 61790

Parity: odd

Prime: No

Previous Prime: 61781

Next Prime: 61813

Digit Sum: 31

Digital Root: 4

Palindrome: No

Factorization: 7 ² × 13 × 97

Divisors: 1, 7, 13, 49, 91, 97, 637, 679, 1261, 4753

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1111000101011101

Octal: 170535

Duodecimal: 2B911

Hexadecimal: f15d

Square: 3817880521

Square Root: 248.57393266390585

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

Number of integer partitions of n whose weighted sum is not divisible by n. A362560

Sum of the distinct prime factors of 2ⁿ-1. A152057

a(n) = ∑_k=1..n prime(k)^prime(k). A61789