Properties of the Number -199724

One Hundred Ninety-Nine Thousand Seven Hundred Twenty-Four

Basics

Value: -199725 → -199724 → -199723

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 32

Digital Root: 5

Palindrome: No

Factorization: 2 ² × 7 ² × 1019

Divisors: 1, 2, 4, 7, 14, 28, 49, 98, 196, 1019

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

7925 Try Today's Challenge

Representations

Binary: -110000110000101100

Octal: -606054

Duodecimal: -976B8

Hexadecimal: -30c2c

Square: 39889676176

Square Root: 446.9049115863463

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

Irregular table: n-th row polynomial given by the formal power series expansion of ∑_{k >= 0} (1 + q)^{n·k + k*(k+1}/2)* ∏_{j = 1..k} (1 - (1 + q)^j), n >= 1. A340880

a(n) is the number of mappings X:{{1..n} choose 3}->{+,-} such that X(a,b,c) = X(b,c,d) implies X(a,b,c) = X(a,b,d) = X(a,c,d) = X(b,c,d) for a < b < c < d. A363586