Properties of the Number 87921

Eighty-Seven Thousand Nine Hundred Twenty-One

Basics

Value: 87920 → 87921 → 87922

Parity: odd

Prime: No

Previous Prime: 87917

Next Prime: 87931

Digit Sum: 27

Digital Root: 9

Palindrome: No

Factorization: 3 ² × 9769

Divisors: 1, 3, 9, 9769, 29307, 87921

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10101011101110001

Octal: 253561

Duodecimal: 42A69

Hexadecimal: 15771

Square: 7730102241

Square Root: 296.5147551134682

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

a(n) = index of second occurrence of A161926(n) in A114381. A161927

Numbers k such that the interval [prime(prime(prime(k))) ... prime(prime(prime(k+1)))] contains no twin prime pair. A87921