Properties of the Number -168688

One Hundred Sixty-Eight Thousand Six Hundred Eighty-Eight

Basics

Value: -168689 → -168688 → -168687

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 37

Digital Root: 1

Palindrome: No

Factorization: 2 ⁴ × 13 × 811

Divisors: 1, 2, 4, 8, 13, 16, 26, 52, 104, 208

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

8109 Try Today's Challenge

Representations

Binary: -101001001011110000

Octal: -511360

Duodecimal: -81754

Hexadecimal: -292f0

Square: 28455641344

Square Root: 410.7164471992813

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

a(1) = 1, a(n+1) = ∑_{k = 1..n} p(k)*a(n+1-k), where p(k) is the k-th prime. A30017

T(n,k)=Number of (n+1)X(k+1) 0..2 arrays with every element next to itself plus and minus one within the range 0..2 horizontally, diagonally or antidiagonally. A232839

Expansion of (theta₃(z)*theta₃(23z) + theta₂(z)*theta₂(23z))⁶. A328094

Number of (n+1)X(3+1) 0..2 arrays with every element next to itself plus and minus one within the range 0..2 horizontally, diagonally or antidiagonally. A232835

Number of (3+1)X(n+1) 0..2 arrays with every element next to itself plus and minus one within the range 0..2 horizontally, diagonally or antidiagonally. A232842