Properties of the Number 25649

Twenty-Five Thousand Six Hundred Forty-Nine

Basics

Value: 25648 → 25649 → 25650

Parity: odd

Prime: No

Previous Prime: 25643

Next Prime: 25657

Digit Sum: 26

Digital Root: 8

Palindrome: No

Factorization: 13 × 1973

Divisors: 1, 13, 1973, 25649

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 110010000110001

Octal: 62061

Duodecimal: 12A15

Hexadecimal: 6431

Square: 657871201

Square Root: 160.15305179733542

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 (w,x,y,z) with all terms in {0,...,n} and even range. A212889

a(n) = n⁴ - 4*(n³-n)/3. A389090

a(n) = 10000·log(n) rounded to nearest integer. A4244

a(n) = floor(10000·log(n)). A4243

a(1) = 1; for n>1, a(n) = the smallest number p > a(n-1) such that (a(n-1)+p)/2 is a cube. A126950

Exponent of 4 (value of i) in n-th number of form 4ⁱ*10^j. A25649

Number of nX5 0..1 arrays with each 1 horizontally or vertically adjacent to 0, 1 or 4 1s. A295272

Number of length n+2 0..6 arrays with the medians of every three consecutive terms nondecreasing. A250138

Number of nX6 0..1 arrays with every element unequal to 2 or 3 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero. A317739