Properties of the Number 66937

Sixty-Six Thousand Nine Hundred Thirty-Seven

Basics

Value: 66936 → 66937 → 66938

Parity: odd

Prime: No

Previous Prime: 66931

Next Prime: 66943

Digit Sum: 31

Digital Root: 4

Palindrome: No

Factorization: 13 × 19 × 271

Divisors: 1, 13, 19, 247, 271, 3523, 5149, 66937

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10000010101111001

Octal: 202571

Duodecimal: 328A1

Hexadecimal: 10579

Square: 4480561969

Square Root: 258.72185837304124

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) = n*(n + 1)*(7·n + 5)/6. A304993

G.f.: (21 + 101·x + 97·x² + 22·x³ + x⁴)/(1 - x)⁵. A160769

For n=1,2,3,..., define b(n) as follows: initialize v at v=n; then for k=2,3,4,..., if v>0 and k divides v, replace v with v-k. Set b(n)=v. Then {a(n)} is the subsequence consisting of the nonzero terms of {b(n)}. A66937