Properties of the Number 80507

Eighty Thousand Five Hundred Seven

Basics

Value: 80506 → 80507 → 80508

Parity: odd

Prime: No

Previous Prime: 80491

Next Prime: 80513

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 7 ² × 31 × 53

Divisors: 1, 7, 31, 49, 53, 217, 371, 1519, 1643, 2597

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10011101001111011

Octal: 235173

Duodecimal: 3A70B

Hexadecimal: 13a7b

Square: 6481377049

Square Root: 283.7375547931574

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 regions in regular n-gon which are quadrilaterals (4-gons) when all its diagonals are drawn. A67151

a(n) = ∑_d∣n σ(d)³. A344044

Numbers k such that σ(k) = ψ(k) + τ(k)³. A390297

Numerator of h(n+6) - h(n), where h(n) = ∑_k=1..n 1/k. A192359

Arithmetic mean of n-th row of A080504. A80507