Properties of the Number 25722

Twenty-Five Thousand Seven Hundred Twenty-Two

Basics

Value: 25721 → 25722 → 25723

Parity: even

Prime: No

Previous Prime: 25717

Next Prime: 25733

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 2 × 3 ² × 1429

Divisors: 1, 2, 3, 6, 9, 18, 1429, 2858, 4287, 8574

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 110010001111010

Octal: 62172

Duodecimal: 12A76

Hexadecimal: 647a

Square: 661621284

Square Root: 160.3807968554839

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 integer partitions of 2n with reverse-alternating sum -2. A344741

Consecutive internal states of the linear congruential pseudo-random number generator (171·s + 11213) mod 53125 when started at 1. A385039

Triangle read by rows: T(n,k) is the number of perfect matchings on {1, 2, ..., 2n} with k disjoint strings of adjacent short pairs. A334059

Number of partitions of n with at most 2 odd parts. A100835

Let [n] = {1,2,...,n}. Let G_n be the union of all closed line segments joining any two elements of [n] X [n] along a vertical or horizontal line, or along a line with slope +-1. Then a(n) = combined total of the number of (nondegenerate) triangles and rectangles for which all edges are subsets of G_n. A98921

Detour index of the n-Apollonian network. A297027

Index of 7ⁿ within the sequence of the numbers of the form 4ⁱ*7^j. A25722