Properties of the Number 25650

Twenty-Five Thousand Six Hundred Fifty

Basics

Value: 25649 → 25650 → 25651

Parity: even

Prime: No

Previous Prime: 25643

Next Prime: 25657

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 2 × 3 ³ × 5 ² × 19

Divisors: 1, 2, 3, 5, 6, 9, 10, 15, 18, 19

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 110010000110010

Octal: 62062

Duodecimal: 12A16

Hexadecimal: 6432

Square: 657922500

Square Root: 160.15617378046966

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

Expansion of 1/η(q)²⁴; Fourier coefficients of T₁₄. A6922

a(n) = 3·a(n-2) - a(n-3), with a(0)=0, a(1)=a(2)=-3. A215665

Coefficient of x⁴ in (1-x-x²)^-n. A6504

Numbers k such that A(k+1) = A(k) + 1, where A() = A005101() are the abundant numbers. A169822

T(n,k)=Number of (n+2)X(k+2) binary arrays avoiding patterns 001 and 110 in rows and columns. A202052

Unsigned matrix inverse of triangle A214398, as a triangle read by rows n >= 1. A215241

a(n) = ∑_i=0..n digsum(i)³, where digsum(i) = A007953(i). A231688

Number of 5 X n (0,1) matrices such that each row and each column is nondecreasing or nonincreasing. A86115

Nine times hexagonal numbers: a(n) = 9·n*(2·n-1). A152994

G.f.: 1 = ∑_n>=0 a(n)*xⁿ/(1+x)⁽ⁿ⁺³²). A215243