Properties of the Number 68813

Sixty-Eight Thousand Eight Hundred Thirteen

Basics

Value: 68812 → 68813 → 68814

Parity: odd

Prime: Yes

Previous Prime: 68791

Next Prime: 68819

Digit Sum: 26

Digital Root: 8

Palindrome: No

Factorization: 68813

Divisors: 1, 68813

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 10000110011001101

Octal: 206315

Duodecimal: 339A5

Hexadecimal: 10ccd

Square: 4735228969

Square Root: 262.32232081925474

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

Primes p such that p+8, p+86, p+864 are prime. A236302

Primes of the form floor(π*k²). A227794

Numbers k such that the continued fraction for sqrt(k) has odd period and if the last term of the periodic part is deleted the two central terms are both 40. A31628

Primes p = prime(k) whose decimal expansion contains the string 13 and such that digsum(p) = disgum(k) where digsum = A007953 is the sum of digits function. A169645

Number of 0..6 arrays x(0..n-1) of n elements with zero n-1st difference. A200152

T(n,k) = number of 0..k arrays x(0..n-1) of n elements with zero (n-1)-st difference. A200154

Primes with a 3 followed by 1's. A68813