Properties of the Number -999999998

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

Basics

Value: -999999999 → -999999998 → -999999997

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 80

Digital Root: 8

Palindrome: No

Factorization: 2 × 691 × 723589

Divisors: 1, 2, 691, 1382, 723589, 1447178, 499999999, 999999998

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -111011100110101100100111111110

Octal: -7346544776

Duodecimal: -23AA93852

Hexadecimal: -3b9ac9fe

Square: 999999996000000004

Square Root: 31622.776570061018

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)³ is smallest cube containing exactly n 9's. A48374

Positive integers k such that f(k)+f(k)=concatenation of k and k, where f(k)=k(k+3)/2 (A000096). A99150

Numbers k such that k*(k+6) gives the concatenation of two numbers m and m-9. A116229

a(n) is the largest n-digit number with exactly 8 divisors, a(n) = 0 if no such number exists. A182676

Largest n-digit number missing in first 10ⁿ digits after the decimal point in expansion of π. A260627

Zeroless numbers that have the largest possible remainder when divided by their digit product. A348834

Largest n-digit squarefree number. A74110

{Concatenation of n-1 and n+1}/n where n is a member of A069871. A77192

Largest n-digit squarefree number beginning with n. A77514

Largest n-digit number that is divisible by exactly 3 primes (counted with multiplicity). A180927