Properties of the Number 25668

Twenty-Five Thousand Six Hundred Sixty-Eight

Basics

Value: 25667 → 25668 → 25669

Parity: even

Prime: No

Previous Prime: 25667

Next Prime: 25673

Digit Sum: 27

Digital Root: 9

Palindrome: No

Factorization: 2 ² × 3 ² × 23 × 31

Divisors: 1, 2, 3, 4, 6, 9, 12, 18, 23, 31

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 110010001000100

Octal: 62104

Duodecimal: 12A30

Hexadecimal: 6444

Square: 658846224

Square Root: 160.21235907382427

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 n such that the decimal expansions of both n and n² have 2 as smallest digit and 8 as largest digit. A257368

a(n) = n*(n+1)*(4·n+1)/2. A135713

The Wiener index of the ortho-polyphenyl chain with n hexagons (see the Dou et al. and the Deng references). A216108

Number of distinct lines passing through at least three points in a triangular grid of side n. A234248

Numbers occurring twice in A068627. A68628

Numbers k such that k and k² use only the digits 2, 4, 5, 6 and 8. A137095

Sum of the next to smallest parts in the partitions of 4n into 4 parts with smallest part = 1. A239195

Number of terms of A202259 with precisely n digits. A276473

Exponent of 7 (value of j) in n-th number of form 6ⁱ*7^j. A25668