Properties of the Number -398125

Three Hundred Ninety-Eight Thousand One Hundred Twenty-Five

Basics

Value: -398126 → -398125 → -398124

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 28

Digital Root: 1

Palindrome: No

Factorization: 5 ⁴ × 7 ² × 13

Divisors: 1, 5, 7, 13, 25, 35, 49, 65, 91, 125

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -1100001001100101101

Octal: -1411455

Duodecimal: -172491

Hexadecimal: -6132d

Square: 158503515625

Square Root: 630.9714732061981

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 T(n, k) = ∏_j=1..k ∏_i=0..j-1 ( 1 - (n-k+1)*(3·i-2) ) with T(n, 0) = 1 and T(n, n) = n!, read by rows. A156730

Maximal number of regions obtained by a straight line drawing of the complete bipartite graph K_n,n. A117717

Number of nonempty subsets of {1,2,...,n} in which exactly 1/4 of the elements are <= (n-4)/2. A48063