Properties of the Number 63442

Sixty-Three Thousand Four Hundred Forty-Two

Basics

Value: 63441 → 63442 → 63443

Parity: even

Prime: No

Previous Prime: 63439

Next Prime: 63443

Digit Sum: 19

Digital Root: 1

Palindrome: No

Factorization: 2 × 31721

Divisors: 1, 2, 31721, 63442

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1111011111010010

Octal: 173722

Duodecimal: 3086A

Hexadecimal: f7d2

Square: 4024887364

Square Root: 251.87695408671274

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

T(n,k)=Half the number of (n+1)X(k+1) binary arrays with equal numbers of majority one 2X2 subblocks and majority zero 2X2 subblocks. A184467

Top-left "head" entry of the n-th power of the E8 Cartan matrix. A126569

a(n) = (10·n³ - 9·n² + 2·n)/3 + 1. A34721

Half the number of (n+1)X2 binary arrays with equal numbers of majority one 2X2 subblocks and majority zero 2X2 subblocks. A184459

The (1,1)-entry in the matrix Mⁿ, where M is the 7 X 7 Cartan matrix [2,-1,0,0,0,0,0; -1,2,-1,0,0,0,0; 0,-1,2,-1,0,0,-1; 0,0,-1,2,-1,0,0; 0,0,0,-1,2,-1,0; 0,0,0,0,-1,2,0; 0,0,-1,0,0,0,2]. A125501

Primes of the form p·q+4 where p and q are consecutive primes. A63442