Properties of the Number 63999

Sixty-Three Thousand Nine Hundred Ninety-Nine

Basics

Value: 63998 → 63999 → 64000

Parity: odd

Prime: No

Previous Prime: 63997

Next Prime: 64007

Digit Sum: 36

Digital Root: 9

Palindrome: No

Factorization: 3 ² × 13 × 547

Divisors: 1, 3, 9, 13, 39, 117, 547, 1641, 4923, 7111

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1111100111111111

Octal: 174777

Duodecimal: 31053

Hexadecimal: f9ff

Square: 4095872001

Square Root: 252.98023638221227

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) = n³ - 1. A68601

Triangle read by rows: T(n, k) = 10^n-1 - 1 + k·floor(9·10^n-1/n), for 1 <= k <= n. A93846

Numbers n such that m=(n²+1)/2, p=(m²+1)/2 and q=(p²+1)/2 are all prime. A188546

a(n) = 1 - n³. A24001

Denominators of the continued fraction convergents of log₁₀((1+sqrt(5))/2). A217686

Decimal representation of the diagonal from the origin to the corner of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 291", based on the 5-celled von Neumann neighborhood. A287502

Gaps of 9 in sequence A038593 (lower terms). A38657

a(n) = 40·n² - 1. A158598

n³ - 1 divided by its largest cube divisor. A128972

Number of (w,x,y,z) with all terms in {1,...,n} and w<2x and y>=3z. A212511