Properties of the Number -142808

One Hundred Forty-Two Thousand Eight Hundred Eight

Basics

Value: -142809 → -142808 → -142807

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 23

Digital Root: 5

Palindrome: No

Factorization: 2 ³ × 17851

Divisors: 1, 2, 4, 8, 17851, 35702, 71404, 142808

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

9108 Try Today's Challenge

Representations

Binary: -100010110111011000

Octal: -426730

Duodecimal: -6A788

Hexadecimal: -22dd8

Square: 20394124864

Square Root: 377.8994575280573

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

Sum of the asymmetry degrees of all compositions of n with parts in {1,5}. A276065

a(n) = ∑_k=0..n r₄(k² + 1), where r₄(k) is the number of ways of writing k as a sum of 4 squares (A000118). A333174