Properties of the Number 87126

Eighty-Seven Thousand One Hundred Twenty-Six

Basics

Value: 87125 → 87126 → 87127

Parity: even

Prime: No

Previous Prime: 87121

Next Prime: 87133

Digit Sum: 24

Digital Root: 6

Palindrome: No

Factorization: 2 × 3 × 13 × 1117

Divisors: 1, 2, 3, 6, 13, 26, 39, 78, 1117, 2234

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10101010001010110

Octal: 252126

Duodecimal: 42506

Hexadecimal: 15456

Square: 7590939876

Square Root: 295.17113680033145

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 in which the maximal multiplicity of parts equals 4. A243121

G.f. A(x) satisfies A(A(A(A(A(x))))) = x + 5·x² + 25·x³. A372521

G.f. satisfies: A(x) = ∑_n>=0 xⁿ / ( (1+x)ⁿ⁺¹ * (1 - (n+1)*x·A(x)) ). A245378

Primes of the form p^k - p^k-1 + 1 for some prime p and integer k > 1. A87126