Properties of the Number 87806

Eighty-Seven Thousand Eight Hundred Six

Basics

Value: 87805 → 87806 → 87807

Parity: even

Prime: No

Previous Prime: 87803

Next Prime: 87811

Digit Sum: 29

Digital Root: 2

Palindrome: No

Factorization: 2 × 43 × 1021

Divisors: 1, 2, 43, 86, 1021, 2042, 43903, 87806

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10101011011111110

Octal: 253376

Duodecimal: 42992

Hexadecimal: 156fe

Square: 7709893636

Square Root: 296.32077213722295

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

Numbers k such that ∑_j=1..k-1 (4j)!/5^j is an integer. A216045

Inverse binomial transform of squares of Catalan numbers. A87806