Properties of the Number 63940

Sixty-Three Thousand Nine Hundred Forty

Basics

Value: 63939 → 63940 → 63941

Parity: even

Prime: No

Previous Prime: 63929

Next Prime: 63949

Digit Sum: 22

Digital Root: 4

Palindrome: No

Factorization: 2 ² × 5 × 23 × 139

Divisors: 1, 2, 4, 5, 10, 20, 23, 46, 92, 115

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1111100111000100

Octal: 174704

Duodecimal: 31004

Hexadecimal: f9c4

Square: 4088323600

Square Root: 252.86359959472222

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 compositions of n with all adjacent parts (x, y) satisfying x < 2y and y <= 2x. A342338

T(n,k)=Number of nXk 0..2 arrays with every 1 immediately preceded by 0 to the left or above, and every 2 immediately preceded by both a 1 and a 0. A203371

Triangle T(n,k) of the number of digraphs with a source on n labeled nodes with k arcs, k=0..n*(n-1). A57274

Nonnegative values·of solutions (x, y) to the Diophantine equation x²+(x+119)² = y². A129837

Solutions y of the Mordell equation y² = x³ - 3a² + 1 for a = 0,1,2, ... (solutions·are given by the sequence A000466). A173202

Number of n X 2 0..2 arrays with every 1 immediately preceded by 0 to the left or above, and every 2 immediately preceded by both a 1 and a 0. A203365

Composite numbers k such that Ramanujan's function τ(k) (A000594) is not divisible by k. A63940