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Properties of the Number 25213

Twenty-Five Thousand Two Hundred Thirteen

Basics

Value: 25212 → 25213 → 25214

Parity: odd

Prime: No

Previous Prime: 25189

Next Prime: 25219

Digit Sum: 13

Digital Root: 4

Palindrome: No

Factorization: 19 × 1327

Divisors: 1, 19, 1327, 25213

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 110001001111101

Octal: 61175

Duodecimal: 12711

Hexadecimal: 627d

Square: 635695369

Square Root: 158.78601953572613

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

Random walks (binomial transform of A006054). A5021
Expansion of (1-x)/(1-x-2·x2+x3). A52547
Number of walks of length n on P3 plus a loop at the end. A96976
Let i be in {1,2,3} and let r >= 0 be an integer. Let p = {p1, p2, p3} = {-2,0,1}, n=2·r+pi, and define a(-2)=0. Then, a(n)=a(2·r+pi) gives the quantity of H7,2,0 tiles in a subdivided H7,i,r tile after linear scaling by the factor xr, where x=sqrt(2·cos(π/7)). A187066
All 81 combinations of prefixing and following a(n) by a single digit are nonprime. A32734
Let i be in {1,2,3} and let r >= 0 be an integer. Let p = {p1, p2, p3} = {-2,0,1}, n=2·r+pi, and define a(-2)=1. Then, a(n)=a(2·r+pi) gives the quantity of H7,1,0 tiles in a subdivided H7,i,r tile after linear scaling by the factor xr, where x=sqrt(2·cos(π/7)). A187065
Number of necklace compositions of n such that every restriction to a circular subinterval has a different sum. A325681
Pseudo-random numbers: Davenport's generator for 32-bit integers. A84277
a(n)=5a(n-1)-11a(n-2)+13a(n-3)-9a(n-4)+3a(n-5)-a(n-6). A140342
Numbers m such that numbers m, m + 1, m + 2 and m + 3 have k, 2k, 3k and 4k divisors respectively. A340157