Properties of the Number 78921

Seventy-Eight Thousand Nine Hundred Twenty-One

Basics

Value: 78920 → 78921 → 78922

Parity: odd

Prime: No

Previous Prime: 78919

Next Prime: 78929

Digit Sum: 27

Digital Root: 9

Palindrome: No

Factorization: 3 ³ × 37 × 79

Divisors: 1, 3, 9, 27, 37, 79, 111, 237, 333, 711

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10011010001001001

Octal: 232111

Duodecimal: 39809

Hexadecimal: 13449

Square: 6228524241

Square Root: 280.92881660662727

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) = 8ⁿ - 2ⁿ. A248217

Signed variant of A077012. A78921