Properties of the Number 25616

Twenty-Five Thousand Six Hundred Sixteen

Basics

Value: 25615 → 25616 → 25617

Parity: even

Prime: No

Previous Prime: 25609

Next Prime: 25621

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 2 ⁴ × 1601

Divisors: 1, 2, 4, 8, 16, 1601, 3202, 6404, 12808, 25616

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 110010000010000

Octal: 62020

Duodecimal: 129A8

Hexadecimal: 6410

Square: 656179456

Square Root: 160.04999218994044

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

a(n) = concatenation of n² and n. A55436

a(n) = 100·n² + n. A55438

Positions of zeros in A345055, which is the Dirichlet inverse of A011772. A345053

Numbers k such that the least term in the periodic part of the continued fraction for sqrt(k) is 20. A31698

Numbers k such that φ(k) + k is a fourth power. A114072

a(n) = 64·n² + 16. A157912

a(n) = 400·n² + 2·n. A158312

a(n) = 256·n² + 16. A158574

Numbers n such that 5ⁿ - 8 is prime. A217134

Number of partitions of n+8 with largest inscribed rectangle having area <= n. A218629