Properties of the Number 67660

Sixty-Seven Thousand Six Hundred Sixty

Basics

Value: 67659 → 67660 → 67661

Parity: even

Prime: No

Previous Prime: 67651

Next Prime: 67679

Digit Sum: 25

Digital Root: 7

Palindrome: No

Factorization: 2 ² × 5 × 17 × 199

Divisors: 1, 2, 4, 5, 10, 17, 20, 34, 68, 85

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 10000100001001100

Octal: 204114

Duodecimal: 331A4

Hexadecimal: 1084c

Square: 4577875600

Square Root: 260.1153590236455

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

Triangle read by rows: T(n,k) is the number of unoriented series-parallel networks with n colored elements using exactly k colors. A339282

a(n) = (2·n³ + 5·n² - 17·n)/2. A162259

Values of gcd(k!+1,2^k+1) not equal to 1 taking k in increasing order. A67660