Properties of the Number 23125

Twenty-Three Thousand One Hundred Twenty-Five

Basics

Value: 23124 → 23125 → 23126

Parity: odd

Prime: No

Previous Prime: 23117

Next Prime: 23131

Digit Sum: 13

Digital Root: 4

Palindrome: No

Factorization: 5 ⁴ × 37

Divisors: 1, 5, 25, 37, 125, 185, 625, 925, 4625, 23125

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 101101001010101

Octal: 55125

Duodecimal: 11471

Hexadecimal: 5a55

Square: 534765625

Square Root: 152.0690632574555

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

Least k such that the decimal representation of k·n contains only 1's and 0's. A79339

a(n) = ∑_d∣n φ(d³). A68963

Numbers whose prime indices have more than one permutation with all equal run-sums. A383015

Numbers that are the sum of 2 nonzero squares in 5 or more ways. A25296

Numbers m such that the largest digit in the decimal expansion of 1/m is 4. A351470

Numbers that are the sum of 2 distinct nonzero squares in 5 or more ways. A25315

Number of partitions of n into parts not of the form 13k, 13k+5 or 13k-5. Also number of partitions with at most 4 parts of size 1 and differences between parts at distance 5 are greater than 1. A35953

House numbers (version 2): a(n) = (n+1)³ + (n+1)*∑_i=0..n i. A50509

Square array A(n,k), n>=0, k>=0, read by antidiagonals downwards, where column k is the expansion of 1/(1 - k·x) * ∏_j=0..k-1 (1 + j·x)/(1 - j·x). A383818

Numbers that are the sum of 2 nonzero squares in exactly 5 ways. A25288