Properties of the Number 24986

Twenty-Four Thousand Nine Hundred Eighty-Six

Basics

Value: 24985 → 24986 → 24987

Parity: even

Prime: No

Previous Prime: 24979

Next Prime: 24989

Digit Sum: 29

Digital Root: 2

Palindrome: No

Factorization: 2 × 13 × 31 ²

Divisors: 1, 2, 13, 26, 31, 62, 403, 806, 961, 1922

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 110000110011010

Octal: 60632

Duodecimal: 12562

Hexadecimal: 619a

Square: 624300196

Square Root: 158.06960492137634

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 compositions of n with all adjacent parts (x,y) satisfying x < 2y and y < 2x. A342330

a(n) = ( a(n-1)*a(n-7) + a(n-4)² ) / a(n-8); a(0) = ... = a(7) = 1. A18896

Number of partitions of n into at least two parts such that the product of largest and smallest part does not exceed n. A116901

a(n) = 26·n². A244633

Number of partitions of n such that the multiplicity of the greatest part is a part. A240494

Expansion of (1+x²)*(1+x⁵)*(1+x⁸)/((1-x)*(1-x²)*(1-x³)*(1-x⁴)*(1-x⁵)*(1-x⁶)*(1-x⁷)*(1-x⁸)*(1-x⁹)*(1-x¹⁰)). A69950

a(n) = smallest k such that the digit sum of 8k is n. A77495

Numbers k such that card({x|σ(x)=k}) > 1 and (∑_σ(x)=k x) < k. A258931

Expansion of 1/( 1 - ∑_k>=0 x^{4^k} / (1 - x^{4^k}) ). A382372

p-INVERT of (1,0,0,1,0,0,1,0,0,...), where p(S) = 1 - 2 S - 2 S². A291036