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Properties of the Number 25143

Twenty-Five Thousand One Hundred Forty-Three

Basics

Value: 25142 → 25143 → 25144

Parity: odd

Prime: No

Previous Prime: 25127

Next Prime: 25147

Digit Sum: 15

Digital Root: 6

Palindrome: No

Factorization: 3 × 17 2 × 29

Divisors: 1, 3, 17, 29, 51, 87, 289, 493, 867, 1479

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 110001000110111

Octal: 61067

Duodecimal: 12673

Hexadecimal: 6237

Square: 632170449

Square Root: 158.56544390250986

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

Number of partitions of n into an odd number of parts such that the set of even parts has only one element. A341495
Number of partitions of n with exactly one repeated part and that part is odd. A341497
Indices of records in A307730. A348449
Numbers with 5 distinct digits {1,2,3,4,5} such that all adjacent digits (as well as first and last digits) are coprime. A104972
Number of permutations of length n avoiding the permutations 13452, 13542, 14253, 14352, 14532, 15243, 15342, 15432, 24153, and 25143. A366706
Number of permutations satisfying -k<=p(i)-i<=r and p(i)-i not in I, i=1..n, with k=3, r=3, I={1}. A79996
a(n) = A120963(n) + A341711(floor(n/2)). A360520
G.f.: ∏k>=1 (1 + x3·k2) / (1 - xk). A385010
a(n) = K(n-1) + K(n) + K(n+1), where K(n) = A341711(floor(n/2)). A361151
Rencontres numbers: number of permutations of [n] with exactly one fixed point. A240