Properties of the Number -990000

Nine Hundred Ninety Thousand

Basics

Value: -990001 → -990000 → -989999

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 2 ⁴ × 3 ² × 5 ⁴ × 11

Divisors: 1, 2, 3, 4, 5, 6, 8, 9, 10, 11

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

9108 Try Today's Challenge

Representations

Binary: -11110001101100110000

Octal: -3615460

Duodecimal: -3B8B00

Hexadecimal: -f1b30

Square: 980100000000

Square Root: 994.98743710662

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

Numbers m such that the largest digit in the decimal expansion of 1/m is 1. A333402

a(n) = φ(10ⁿ+1), where φ is Euler's totient function (A000010). A366669

Averages of twin prime pairs k such that k·11 and k/11 are squares. A154674

Integers of the form k = m³-m² such that k-+1 are primes. A154731

n and π(n) are both made of nontrivial runs of identical digits, where π(n)=A000720(n). A116056

a(n) = n⁶ - n⁴. A136038

Numbers k such that k and k² use only the digits 0, 1, 5, 8 and 9. A136874

Numbers k such that k and k² use only the digits 0, 1, 6, 8 and 9. A136879

Numbers k such that k and k² use only the digits 0, 1, 8 and 9. A136881

The largest n-digit number whose last k digits are divisible by k² for k = 1..n, otherwise 0. A228011