Properties of the Number -171808

One Hundred Seventy-One Thousand Eight Hundred Eight

Basics

Value: -171809 → -171808 → -171807

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 25

Digital Root: 7

Palindrome: No

Factorization: 2 ⁵ × 7 × 13 × 59

Divisors: 1, 2, 4, 7, 8, 13, 14, 16, 26, 28

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

8109 Try Today's Challenge

Representations

Binary: -101001111100100000

Octal: -517440

Duodecimal: -83514

Hexadecimal: -29f20

Square: 29517988864

Square Root: 414.49728587772444

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 read by rows: T(n,w) is the number of n-step self avoiding walks on a 3D cubic lattice confined between two infinite planes a distance w apart where the walk starts on one of the planes. A338126

Triangle T(n,m) = coefficient of xⁿ in expansion of x^m*(x+1)^log(1+x*m) = sum(n>=m, T(n,m) xⁿ*m!/n!). A202185