Properties of the Number 80421

Eighty Thousand Four Hundred Twenty-One

Basics

Value: 80420 → 80421 → 80422

Parity: odd

Prime: No

Previous Prime: 80407

Next Prime: 80429

Digit Sum: 15

Digital Root: 6

Palindrome: No

Factorization: 3 × 11 × 2437

Divisors: 1, 3, 11, 33, 2437, 7311, 26807, 80421

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 10011101000100101

Octal: 235045

Duodecimal: 3A659

Hexadecimal: 13a25

Square: 6467537241

Square Root: 283.58596580225895

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

Sequence whose Hankel transform is a (1,1) Somos-4 sequence. A174013

Number of nonempty subsets of {1, 2, ..., n} with <=6 pairwise coprime elements. A187267

a(n) = (n+1)*(n+2)*(n+9)*3ⁿ/18. A80421