Properties of the Number -999981

Nine Hundred Ninety-Nine Thousand Nine Hundred Eighty-One

Basics

Value: -999982 → -999981 → -999980

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 45

Digital Root: 9

Palindrome: No

Factorization: 3 ² × 111109

Divisors: 1, 3, 9, 111109, 333327, 999981

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -11110100001000101101

Octal: -3641055

Duodecimal: -402839

Hexadecimal: -f422d

Square: 999962000361

Square Root: 999.9904999548746

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 last term of the analogous sequence to A121805, but with initial term n, or -1 if that sequence is infinite. A330129

Numbers without comma-successors: these are the numbers k such that if the commas sequence A121805 is started at k instead of 1, there is no second term. A367341

Largest n-digit number with exactly n divisors, or 0 if no such number exists. A70845

a(n) is the least term of the first run of A331786(n) consecutive numbers whose sum of digits (A007953) is not divisible by n. A352688

a(n) = the largest n-digit number with exactly 6 divisors, a(n) = 0 if no such number exists. A182672