Properties of the Number 80628

Eighty Thousand Six Hundred Twenty-Eight

Basics

Value: 80627 → 80628 → 80629

Parity: even

Prime: No

Previous Prime: 80627

Next Prime: 80629

Digit Sum: 24

Digital Root: 6

Palindrome: No

Factorization: 2 ² × 3 × 6719

Divisors: 1, 2, 3, 4, 6, 12, 6719, 13438, 20157, 26876

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 10011101011110100

Octal: 235364

Duodecimal: 3A7B0

Hexadecimal: 13af4

Square: 6500874384

Square Root: 283.9506999463111

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) is the smallest k such that the sum of the number of divisors of the n numbers from k to k+n-1 equals τ(k+n). A348837

Number of permutations of [n] having four cycles of the form (c1, c2, ..., c_m) where c1 = min_i>=1 c_i and c_j = min_i>=j c_i or c_j = max_i>=j c_i. A346319

a(n) is the least k such that f(a(n-1)+1) + ... + f(k) > f(a(n-2)+1) + ... + f(a(n-1)) for n > 1, where f(n) = 1/(n+7) and a(1) = 1. A225922

Consider 3 X 3 X 3 Rubik cube, but only allow the <U, R> group to act; sequence gives number of positions that are exactly n moves from the start. A80628