Properties of the Number 90910

Ninety Thousand Nine Hundred Ten

Basics

Value: 90909 → 90910 → 90911

Parity: even

Prime: No

Previous Prime: 90907

Next Prime: 90911

Digit Sum: 19

Digital Root: 1

Palindrome: No

Factorization: 2 × 5 × 9091

Divisors: 1, 2, 5, 10, 9091, 18182, 45455, 90910

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Representations

Binary: 10110001100011110

Octal: 261436

Duodecimal: 4473A

Hexadecimal: 1631e

Square: 8264628100

Square Root: 301.51285213071765

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 such that k*(k+5) gives the concatenation of a number m with itself. A116289

a(n) = n⁵ - n⁴ + n³ - n² + n. A191012

a(n+1) is the least positive integer k such that (1) k is a one-digit number or the concatenation of two or more consecutive numbers; (2) |k-a(n)| is prime; (3) k is not already in the sequence; and (4) |k-a(n)| is not the absolute difference of two previous consecutive members of the sequence. A90910