Properties of the Number 90556

Ninety Thousand Five Hundred Fifty-Six

Basics

Value: 90555 → 90556 → 90557

Parity: even

Prime: No

Previous Prime: 90547

Next Prime: 90583

Digit Sum: 25

Digital Root: 7

Palindrome: No

Factorization: 2 ² × 22639

Divisors: 1, 2, 4, 22639, 45278, 90556

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 10110000110111100

Octal: 260674

Duodecimal: 444A4

Hexadecimal: 161bc

Square: 8200389136

Square Root: 300.9252398852579

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 set partitions of [n] into m blocks such that at least one pair of distinct cyclically consecutive blocks (b,c) = (b,(b mod m)+1) exists having no pair of numbers (i,j) = (i,(i mod n)+1) with i member of b and j member of c. A271273

Beginning with 1, a(n) = least number m > a(n-1) such that φ(a(n-1)) divides φ(m). A90556