Properties of the Number 25172

Twenty-Five Thousand One Hundred Seventy-Two

Basics

Value: 25171 → 25172 → 25173

Parity: even

Prime: No

Previous Prime: 25171

Next Prime: 25183

Digit Sum: 17

Digital Root: 8

Palindrome: No

Factorization: 2 ² × 7 × 29 × 31

Divisors: 1, 2, 4, 7, 14, 28, 29, 31, 58, 62

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 110001001010100

Octal: 61124

Duodecimal: 12698

Hexadecimal: 6254

Square: 633629584

Square Root: 158.65686244219

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 that are the sum of four third powers in seven or more ways. A345150

T(n,k)=Number of (n+1)X(k+1) 0..3 arrays colored with the difference of the maximum and minimum in each 2X2 subblock. A236451

Numbers that are the sum of four third powers in exactly seven ways. A345151

Numbers k with the property that k² is a product of two distinct triangular numbers. A175497

Perimeters of more than one primitive 120-degree integer triangle. A350047

a(n) = floor(n*(n-1)*(n-2)*(n-3)/30). A11940

Number of (n+1)X(2+1) 0..3 arrays colored with the difference of the maximum and minimum in each 2X2 subblock. A236446

a(n) = n*(n+1)*(n+3). A317637

Number of Largest Chain Ladder Family (LCLF) matchings on n edges. A256336

Let φ = arccos(1/3), the dihedral angle of the regular tetrahedron. Then cos(n*φ) = a(n)/3ⁿ. A25172