Properties of the Number 25431

Twenty-Five Thousand Four Hundred Thirty-One

Basics

Value: 25430 → 25431 → 25432

Parity: odd

Prime: No

Previous Prime: 25423

Next Prime: 25439

Digit Sum: 15

Digital Root: 6

Palindrome: No

Factorization: 3 × 7 ² × 173

Divisors: 1, 3, 7, 21, 49, 147, 173, 519, 1211, 3633

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 110001101010111

Octal: 61527

Duodecimal: 12873

Hexadecimal: 6357

Square: 646735761

Square Root: 159.47100049852324

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

a(n) = ∑_m=1..n ∑_k=1..m prime(k). A14148

Array read by antidiagonals: T(n,k) is the number of nonisomorphic multisets of derangements of an n-set with k derangements. A362759

(prime(n)*(prime(n+1)-1) + (prime(n)-1)*prime(n+1)) / 2. A99909

a(n) = 22·n² - 1. A158540

Number of minimal total dominating sets in the n X n rook complement graph. A347922

Number of nonisomorphic unordered pairs of derangements of an n-set. A362760

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

Nodes of tree generated as follows: (1,2) is an edge, and if (x,y) is an edge, then (y, y² - x²) and (y, y² + x²) are edges. A228940

Least positive k such that 2ⁿ + k is a Chen prime and 2ⁿ + k + 2 is a brilliant number. A109364

Central moment sequence of tr(A⁶) in USp(6). A138548