Properties of the Number -631631

Six Hundred Thirty-One Thousand Six Hundred Thirty-One

Basics

Value: -631632 → -631631 → -631630

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 7 × 11 × 13 × 631

Divisors: 1, 7, 11, 13, 77, 91, 143, 631, 1001, 4417

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -10011010001101001111

Octal: -2321517

Duodecimal: -26563B

Hexadecimal: -9a34f

Square: 398957720161

Square Root: 794.7521626268153

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

Triangle of central factorial numbers 4^k T(2n+1, 2n+1-2k). A8958

Triangle of scaled central factorial numbers, T(n,k) = A008958(n,n-k). A160562

Central factorial numbers: 2nd subdiagonal of A008958. A2453

Square array A(n,k), n >= 0, k >= 0, read by antidiagonals downwards, where A(n,k) = (2·n+k)!/k! * [x^2·n+k] sinh(x)^k. A381512

A255454(2ⁿ-1). A255455

Number of excursions of length n with Motzkin-steps avoiding the consecutive steps UU, HH and DU. A329694