Properties of the Number -857956

Eight Hundred Fifty-Seven Thousand Nine Hundred Fifty-Six

Basics

Value: -857957 → -857956 → -857955

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 40

Digital Root: 4

Palindrome: No

Factorization: 2 ² × 11 × 17 × 31 × 37

Divisors: 1, 2, 4, 11, 17, 22, 31, 34, 37, 44

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -11010001011101100100

Octal: -3213544

Duodecimal: -354604

Hexadecimal: -d1764

Square: 736088497936

Square Root: 926.2591430048072

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 rooted simplicial 3-polytopes with n+3 nodes; or rooted 3-connected triangulations with 2n+2 faces; or rooted 3-connected trivalent maps with 2n+2 vertices. A260

Array T(n,m) = 2*(2m+3)!*(4n+2m+1)!/(m!*(m+2)!*n!*(3n+2m+3)!) read by antidiagonals. A146305

Array read by antidiagonals: T(n,k) is the number of rooted strong triangulations of a disk with n interior nodes and 3+k nodes on the boundary. A341856

A diagonal of A036969. A60493

Erroneous version of A000260. A362102