Properties of the Number -999999990

Nine Hundred Ninety-Nine Million Nine Hundred Ninety-Nine Thousand Nine Hundred Ninety

Basics

Value: -999999991 → -999999990 → -999999989

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 72

Digital Root: 9

Palindrome: No

Factorization: 2 × 3 ² × 5 × 11 × 73 × 101 × 137

Divisors: 1, 2, 3, 5, 6, 9, 10, 11, 15, 18

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

9108 Try Today's Challenge

Representations

Binary: -111011100110101100100111110110

Octal: -7346544766

Duodecimal: -23AA93846

Hexadecimal: -3b9ac9f6

Square: 999999980000000100

Square Root: 31622.77644356991

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 largest number such that all of a(n)'s length-n substrings are distinct and divisible by 99. A93299

a(n) = n⁹ - n. A196289

a(n) = 10*(10ⁿ-1). A124167

a(n) is the number of labeled rooted trees on a set of size n where each node has at most 8 neighbors that are further away from the root than the node itself. A325207