Properties of the Number 68900

Sixty-Eight Thousand Nine Hundred

Basics

Value: 68899 → 68900 → 68901

Parity: even

Prime: No

Previous Prime: 68899

Next Prime: 68903

Digit Sum: 23

Digital Root: 5

Palindrome: No

Factorization: 2 ² × 5 ² × 13 × 53

Divisors: 1, 2, 4, 5, 10, 13, 20, 25, 26, 50

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 10000110100100100

Octal: 206444

Duodecimal: 33A58

Hexadecimal: 10d24

Square: 4747210000

Square Root: 262.48809496813374

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) = size of the n-th term in S(10) (defined in Comments). A158577

Square roots of sums of squares of divisors in A046655. A46656

The common value of sigma₂ for square-amicable numbers, sigma₂(m)=sigma₂(n), m<n. A110929

a(n) = A068346(A276086(n)), where A068346 is the second arithmetic derivative, and A276086 is the primorial base exp-function. A370131

a(n) = (7·n+1)*(7·n+6). A1526

Number of binary strings of length n that can be written as the concatenation of nontrivial powers of other strings. A265642

Digit reversal of n = 11 times digit reversal of n/11. A68900