Properties of the Number 64109

Sixty-Four Thousand One Hundred Nine

Basics

Value: 64108 → 64109 → 64110

Parity: odd

Prime: Yes

Previous Prime: 64091

Next Prime: 64123

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 64109

Divisors: 1, 64109

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1111101001101101

Octal: 175155

Duodecimal: 31125

Hexadecimal: fa6d

Square: 4109963881

Square Root: 253.1975513309716

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) = ∑_{k=0..floor(2·n/5)} binomial(3·k,2·n-5·k). A392434

n-th Lucas number (A000204(n)) + n-th non-Lucas number (A090946(n+1)). A22801

Hybrid binary rooted trees with n nodes whose root is labeled by "a". A11272

a(n) = b(n) + d(n), where b(n) = (n-th Lucas number) and d(n) = (n-th non-Fibonacci number). A23484

Primes that are anagrams of Fibonacci numbers. A162390

(∏_k=1..n prime(k)) - prime(4n). A64109

Even numbers that cannot be represented as the sum of an odd prime and a safe prime (A005385). A195324

Smaller of two successive primes using the same digits such that the hundreds digit is the most significant digit to differ. A156117