Properties of the Number 64221

Sixty-Four Thousand Two Hundred Twenty-One

Basics

Value: 64220 → 64221 → 64222

Parity: odd

Prime: No

Previous Prime: 64217

Next Prime: 64223

Digit Sum: 15

Digital Root: 6

Palindrome: No

Factorization: 3 × 21407

Divisors: 1, 3, 21407, 64221

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1111101011011101

Octal: 175335

Duodecimal: 311B9

Hexadecimal: fadd

Square: 4124336841

Square Root: 253.41862599264482

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

Number of partitions of n into distinct parts with 2 levels of parentheses. A50343

a(n) is the integer part of the area of a regular n-gon whose side lengths are n. A374296

Least k such that k·12ⁿ +/- 1 are twin primes. A64221