Properties of the Number -100000009

One Hundred Million Nine

Basics

Value: -100000010 → -100000009 → -100000008

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 10

Digital Root: 1

Palindrome: No

Factorization: 149 × 671141

Divisors: 1, 149, 671141, 100000009

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -101111101011110000100001001

Octal: -575360411

Duodecimal: -295A6461

Hexadecimal: -5f5e109

Square: 10000001800000081

Square Root: 10000.00044999999

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

Where records occur in A118514. A118516

a(1) = 12; then numbers obtained at every stage of division by 9 in the following process: multiply by 9, reverse the digits, divide by 9, reverse the digits, multiply by 9, reverse the digits, divide by 9, ... A83825

Numbers of the form 10^k + 1, 3, 7, or 9 for k>=1. A88265

a(n) = 10ⁿ + 9. A253213

Numbers k such that k² contains only digits {0,1,8}, not ending with zero. A58421

Smallest n-digit number ending in n. A266959