Properties of the Number 15925

Fifteen Thousand Nine Hundred Twenty-Five

Basics

Value: 15924 → 15925 → 15926

Parity: odd

Prime: No

Previous Prime: 15923

Next Prime: 15937

Digit Sum: 22

Digital Root: 4

Palindrome: No

Factorization: 5 ² × 7 ² × 13

Divisors: 1, 5, 7, 13, 25, 35, 49, 65, 91, 175

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 11111000110101

Octal: 37065

Duodecimal: 9271

Hexadecimal: 3e35

Square: 253605625

Square Root: 126.19429464123962

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

Octagonal pyramidal numbers: a(n) = n*(n+1)*(2·n-1)/2. A2414

Unitary harmonic numbers (those for which the unitary harmonic mean is an integer). A6086

Infinitary harmonic numbers: harmonic mean of infinitary divisors is an integer. A63947

Bi-unitary harmonic numbers. A286325

13 times the squares: a(n) = 13·n². A152742

Numbers k such that A276086(k) is a multiple of k. A328387

Numbers n such that n is not the power of a prime and such that for every prime divisor p of n, p-1 divides n-1. A87442

Numbers that are multiple-digit narcissistic numbers in exactly three bases. A256362

Structured icosidodecahedral numbers. A100147

a(n) is the numerator of the probability P(n) of the occurrence of a 3-dimensional self-trapping walk of length n. A77818