Properties of the Number 80660

Eighty Thousand Six Hundred Sixty

Basics

Value: 80659 → 80660 → 80661

Parity: even

Prime: No

Previous Prime: 80657

Next Prime: 80669

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 2 ² × 5 × 37 × 109

Divisors: 1, 2, 4, 5, 10, 20, 37, 74, 109, 148

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10011101100010100

Octal: 235424

Duodecimal: 3A818

Hexadecimal: 13b14

Square: 6506035600

Square Root: 284.0070421662111

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 that divide 2^k + 4. A244673

a(0)=1, a(1)=6, a(n) = 7·a(n-1) - 2·a(n-2). A122074

Number of subsets of {1,2,3,...,n} that sum to 0 mod 13. A68034

Numbers k such that k and k² use only the digits 0, 3, 5, 6 and 8. A136938

Number of (n+3)X(1+3) 0..1 arrays with each row and column divisible by 13, read as a binary number with top and left being the most significant bits. A262482

a(2·n) equals coefficient of xⁿ in A(x)ⁿ⁺¹ and a(2·n+1) equals coefficient of xⁿ in A(x)ⁿ⁺², for n>=0. A94557

Order of group of n X n X n Rubik cube, under assumptions s, m, not-i. A80660