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Properties of the Number -25720

Twenty-Five Thousand Seven Hundred Twenty

Basics

Value: -25721 → -25720 → -25719

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 16

Digital Root: 7

Palindrome: No

Factorization: 2 3 × 5 × 643

Divisors: 1, 2, 4, 5, 8, 10, 20, 40, 643, 1286

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: -110010001111000

Octal: -62170

Duodecimal: -12A74

Hexadecimal: -6478

Square: 661518400

Square Root: 160.37456157383565

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

Decimal representation of the diagonal from the corner to the origin of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 478", based on the 5-celled von Neumann neighborhood. A288505
Number of length 2+2 0..n arrays with the sum of second differences squared multiplied by some arrangement of +-1 equal to zero. A250321
a(n) = cpg(3, n) + cpg(4, n) + ... + cpg(n, n) where cpg(m, n) is the n-th m-th-order centered polygonal number. A257052
Number of length-n binary words having no subwords that are abelian fourth powers. A305003
Sums of 2 cubes of distinct odd primes. A137632
Number of admissible 2-dimensional lattice patterns of type σ(2,3,5). A220843
Numbers k such that Bernoulli number Bk has denominator 13530. A295587
Expansion of e.g.f. exp(2·x) / (1 - log(1+x)). A368288
Even numbers that are the sum of two odd prime cubes. A286836