Properties of the Number 68440

Sixty-Eight Thousand Four Hundred Forty

Basics

Value: 68439 → 68440 → 68441

Parity: even

Prime: No

Previous Prime: 68437

Next Prime: 68443

Digit Sum: 22

Digital Root: 4

Palindrome: No

Factorization: 2 ³ × 5 × 29 × 59

Divisors: 1, 2, 4, 5, 8, 10, 20, 29, 40, 58

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 10000101101011000

Octal: 205530

Duodecimal: 33734

Hexadecimal: 10b58

Square: 4684033600

Square Root: 261.61039734689444

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

1/3 of product of three numbers: the n-th prime, the previous number and the following number. A127919

a(0)=0, a(n) = (a(n-1) XOR n) * n. A182420

Practical numbers q with q + 2 and q² + 2 both practical. A294225

Numbers k such that k and k² use only the digits 0, 3, 4, 6 and 8. A136931

Expansion of π in base 15. A68440