Properties of the Number -106688

One Hundred Six Thousand Six Hundred Eighty-Eight

Basics

Value: -106689 → -106688 → -106687

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 29

Digital Root: 2

Palindrome: No

Factorization: 2 ⁶ × 1667

Divisors: 1, 2, 4, 8, 16, 32, 64, 1667, 3334, 6668

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

8109 Try Today's Challenge

Representations

Binary: -11010000011000000

Octal: -320300

Duodecimal: -518A8

Hexadecimal: -1a0c0

Square: 11382329344

Square Root: 326.63129060149765

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(n) = ∑_k=1..n (k/gcd(n, k))⁴. A343514

a(n) = (3/2)*A019565((2n-1)²) - A019565(A001065((2n-1)²)), where A019565 is the base-2 exp-function, and A001065 is the sum of proper divisors of n. A379501

Numbers k such that φ(k) + k is a fourth power. A114072

T(n,n), array T as in A047150. A47152