Properties of the Number 61639

Sixty-One Thousand Six Hundred Thirty-Nine

Basics

Value: 61638 → 61639 → 61640

Parity: odd

Prime: No

Previous Prime: 61637

Next Prime: 61643

Digit Sum: 25

Digital Root: 7

Palindrome: No

Factorization: 53 × 1163

Divisors: 1, 53, 1163, 61639

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1111000011000111

Octal: 170307

Duodecimal: 2B807

Hexadecimal: f0c7

Square: 3799366321

Square Root: 248.27202822710416

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 compositions of n into parts that are alternately equal and unequal. A357643

24 'Reverse and Add' steps are needed to reach a palindrome. A65318

Number of integer compositions of n whose leaders of weakly increasing runs are not strictly decreasing. A375140

Number of palindromic Carlitz compositions of n. A239327

Number of colored partitions of n into distinct parts such that all parts have distinct colors and the color of a part of size i is in {1..i}. A392063

Number of planar planted trees with n non-root nodes and every 2-valent node isolated. A61639