Properties of the Number 25422

Twenty-Five Thousand Four Hundred Twenty-Two

Basics

Value: 25421 → 25422 → 25423

Parity: even

Prime: No

Previous Prime: 25411

Next Prime: 25423

Digit Sum: 15

Digital Root: 6

Palindrome: No

Factorization: 2 × 3 × 19 × 223

Divisors: 1, 2, 3, 6, 19, 38, 57, 114, 223, 446

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

4823 Try Today's Challenge

Representations

Binary: 110001101001110

Octal: 61516

Duodecimal: 12866

Hexadecimal: 634e

Square: 646278084

Square Root: 159.44277970482077

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

Sum of largest parts (counted with multiplicity) of all partitions of n. A92321

Expansion of g.f.: (1 - 5·x - sqrt(25·x² - 14·x + 1))/(2·x). A82302

Number of nondecreasing arrangements of 7 numbers x(i) in -(n+5)..(n+5) with the sum of sign(x(i))*2^|x(i)| zero. A187991

Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 129", based on the 5-celled von Neumann neighborhood. A270219

a(n) = [xⁿ] 1/(1 - n·x - x/(1 - n·x - x/(1 - n·x - x/(1 - n·x - x/(1 - ...))))), a continued fraction. A302286

Base-8 palindromes that start with 6. A43026

Number of partitions of n into 7 squares. A25422

Square array read by ascending antidiagonals, n>=0, k>=0. Row n is the expansion of (1-n·x-sqrt(n²*x²-2·n*x-4·x+1))/(2·x). A247507