Properties of the Number 68648

Sixty-Eight Thousand Six Hundred Forty-Eight

Basics

Value: 68647 → 68648 → 68649

Parity: even

Prime: No

Previous Prime: 68639

Next Prime: 68659

Digit Sum: 32

Digital Root: 5

Palindrome: No

Factorization: 2 ³ × 8581

Divisors: 1, 2, 4, 8, 8581, 17162, 34324, 68648

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 10000110000101000

Octal: 206050

Duodecimal: 33888

Hexadecimal: 10c28

Square: 4712547904

Square Root: 262.00763347658403

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 n for which each of the digits 0-9 appears exactly once as first digit in the orbit of n under iterations of n -> (first digit of n)*(n with first digit removed) until a single digit is reached; no leading zeros allowed. A257299

Number of partitions of n into parts not of the form 25k, 25k+10 or 25k-10. Also number of partitions with at most 9 parts of size 1 and differences between parts at distance 11 are greater than 1. A36009

Primes in which a string of 8's is sandwiched between two 1's. A68648