Properties of the Number 64009

Sixty-Four Thousand Nine

Basics

Value: 64008 → 64009 → 64010

Parity: odd

Prime: No

Previous Prime: 64007

Next Prime: 64013

Digit Sum: 19

Digital Root: 1

Palindrome: No

Factorization: 11 ² × 23 ²

Divisors: 1, 11, 23, 121, 253, 529, 2783, 5819, 64009

Polygonal

Triangular: No

Square: Yes

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1111101000001001

Octal: 175011

Duodecimal: 31061

Hexadecimal: fa09

Square: 4097152081

Square Root: 253

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

Sum of first n cubes; or n-th triangular number squared. A537

Squares which remain squares when the last digit is removed. A23110

Positive integers k such that k divides 12^k - 1. A14951

Squares with initial digit '6'. A45789

a(n) = (9·n + 1)². A17174

a(n) = (12·n + 1)². A17534

Numbers k such that k | 10^k + 1. A15958

Squares which are the concatenation of two nonzero squares. A39686

a(n) = ∑_{k=1..n, gcd(n,k) = 1} k³. A53819

a(n) = (14·n+1)². A134934