Properties of the Number 90668

Ninety Thousand Six Hundred Sixty-Eight

Basics

Value: 90667 → 90668 → 90669

Parity: even

Prime: No

Previous Prime: 90659

Next Prime: 90677

Digit Sum: 29

Digital Root: 2

Palindrome: No

Factorization: 2 ² × 19 × 1193

Divisors: 1, 2, 4, 19, 38, 76, 1193, 2386, 4772, 22667

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

603 Try Today's Challenge

Representations

Binary: 10110001000101100

Octal: 261054

Duodecimal: 44578

Hexadecimal: 1622c

Square: 8220686224

Square Root: 301.11127511270644

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

Indices of primes in sequence defined by A(0) = 37, A(n) = 10·A(n-1) - 13 for n > 0. A101837

a(n) = floor( prime(n)*(n-π(n))/(π(n)+1) ) where π=A000720. A90668