Properties of the Number 68408

Sixty-Eight Thousand Four Hundred Eight

Basics

Value: 68407 → 68408 → 68409

Parity: even

Prime: No

Previous Prime: 68399

Next Prime: 68437

Digit Sum: 26

Digital Root: 8

Palindrome: No

Factorization: 2 ³ × 17 × 503

Divisors: 1, 2, 4, 8, 17, 34, 68, 136, 503, 1006

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 10000101100111000

Octal: 205470

Duodecimal: 33708

Hexadecimal: 10b38

Square: 4679654464

Square Root: 261.54923054752044

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

Let p = n-th prime == 7 mod 8; a(n) = sum of quadratic nonresidues mod p. A282043

Number of trees on [n], rooted at 1, in which 2 is a descendant of 3. A129137

Denominators of continued fraction convergents to sqrt(739). A42423

Automorphic numbers: numbers k such that k⁶ ends with k. Also m-morphic numbers for all m not congruent to 26 (mod 50) but congruent to 6 (mod 10). A68408

Number of ways to place 8 nonattacking amazons (superqueens) on an 8 X n board. A178372