Properties of the Number -398804

Three Hundred Ninety-Eight Thousand Eight Hundred Four

Basics

Value: -398805 → -398804 → -398803

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 32

Digital Root: 5

Palindrome: No

Factorization: 2 ² × 7 × 14243

Divisors: 1, 2, 4, 7, 14, 28, 14243, 28486, 56972, 99701

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

9108 Try Today's Challenge

Representations

Binary: -1100001010111010100

Octal: -1412724

Duodecimal: -172958

Hexadecimal: -615d4

Square: 159044630416

Square Root: 631.5093031777125

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) is the surface area of the symmetric tower described in A221529 which is a polycube whose successive terraces are the symmetric representation of σ A000203(i) (from i = 1 to n) starting from the top and the levels of these terraces are the partition numbers A000041(h-1) (from h = 1 to n) starting from the base. A345023

Numbers m such that m = S_af(m) = af(d₁)+af(d₂)+...+af(d_k) where d₁ d₂ ... d_n is the decimal expansion of m and af(m) = m!-(m-1)!+(m-2)!+...1! (alternating factorial) with S_af(0) = 1. A335767