Properties of the Number 64990

Sixty-Four Thousand Nine Hundred Ninety

Basics

Value: 64989 → 64990 → 64991

Parity: even

Prime: No

Previous Prime: 64969

Next Prime: 64997

Digit Sum: 28

Digital Root: 1

Palindrome: No

Factorization: 2 × 5 × 67 × 97

Divisors: 1, 2, 5, 10, 67, 97, 134, 194, 335, 485

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1111110111011110

Octal: 176736

Duodecimal: 3173A

Hexadecimal: fdde

Square: 4223700100

Square Root: 254.93136331177456

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) is the number of distinct five-cuboid combinations filling an n X n X n cube only with at least one cut spanning through the full cube. A384737

The sum of denominators of unreduced mediants in Farey sequences of orders 1,2,..,n. A248832

If A_k denotes the first 3^k terms, then A₀ = 0, A_k+1 = A_k A_k B_k, where B_k is obtained from A_k by interchanging 0's and 1's. A64990