Properties of the Number -990990

Nine Hundred Ninety Thousand Nine Hundred Ninety

Basics

Value: -990991 → -990990 → -990989

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 36

Digital Root: 9

Palindrome: No

Factorization: 2 × 3 ² × 5 × 7 × 11 ² × 13

Divisors: 1, 2, 3, 5, 6, 7, 9, 10, 11, 13

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

7989 Try Today's Challenge

Representations

Binary: -11110001111100001110

Octal: -3617416

Duodecimal: -3B95A6

Hexadecimal: -f1f0e

Square: 982061180100

Square Root: 995.4848065138915

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) = {n concatenate R(n)}*{ R(n) concatenate n}, where R(n) = digit reversal of n. A110722

Numbers with exactly 6 distinct prime divisors {2,3,5,7,11,13}. A147573

a(n) = 66*(n+1)*binomial(n+5,11). A27816

a(n) = 14*(n+1)*binomial(n+5,8). A27813

a(n) is the number of subsets of {1,2,...,n} with at least two elements and the difference between successive elements at least 6. A335184