Properties of the Number 25157

Twenty-Five Thousand One Hundred Fifty-Seven

Basics

Value: 25156 → 25157 → 25158

Parity: odd

Prime: No

Previous Prime: 25153

Next Prime: 25163

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 11 × 2287

Divisors: 1, 11, 2287, 25157

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 110001001000101

Octal: 61105

Duodecimal: 12685

Hexadecimal: 6245

Square: 632874649

Square Root: 158.60958356921563

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

Partial sums of A299283. A299284

Discriminants of real quadratic fields with class number 1 and related continued fraction period length of 20. A50969

Number of strict compositions of n with all adjacent parts (x, y) satisfying x < 2y and y < 2x. A342341

G.f. A(x) satisfies: 1 = ∑_n>=0 ((1+x)^4·n - A(x))ⁿ. A321604

Number of series-reduced rooted trees whose leaves are non-singleton integer partitions whose multiset union is an integer partition of n with no 1's. A320294

Number of partitions of n² into distinct squares > 1. A298642

Semiprimes (A001358) whose digit reversal is a pentagonal number (A000326). A115708

Number of sets of nonempty words with a total of n letters over binary alphabet containing the second letter such that within each prefix of a word every letter of the alphabet is at least as frequent as the subsequent alphabet letter. A293883

a(n) is the total number of runs of descents over all flattened Catalan words of length n. A372874

Records in A111229. A111270