Properties of the Number -100009999

One Hundred Million Nine Thousand Nine Hundred Ninety-Nine

Basics

Value: -100010000 → -100009999 → -100009998

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 37

Digital Root: 1

Palindrome: No

Factorization: 31 × 3226129

Divisors: 1, 31, 3226129, 100009999

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: -101111101100000100000001111

Octal: -575404017

Duodecimal: -295B01A7

Hexadecimal: -5f6080f

Square: 10001999899980001

Square Root: 10000.499937503124

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 k such that the k-th triangular number contains only digits {0,5,9}. A119086

a(n) is the n-digit number k such that R(k)/k is maximal for any n-digit number. A372010