Properties of the Number 80855

Eighty Thousand Eight Hundred Fifty-Five

Basics

Value: 80854 → 80855 → 80856

Parity: odd

Prime: No

Previous Prime: 80849

Next Prime: 80863

Digit Sum: 26

Digital Root: 8

Palindrome: No

Factorization: 5 × 103 × 157

Divisors: 1, 5, 103, 157, 515, 785, 16171, 80855

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10011101111010111

Octal: 235727

Duodecimal: 3A95B

Hexadecimal: 13bd7

Square: 6537531025

Square Root: 284.3501362756839

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 k = (d₁! + d₂! + ... + d_k!) - (d₁ + d₂ + ... + d_k) where d₁ d₂ ... d_k is the decimal expansion of k. A97642

a(n) = 5*(3·n+1)*(9·n+8)/2 (n>=0). A304508

a(n) = (9·n² - 3·n + 2)/2. A80855