Properties of the Number -99999998

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

Basics

Value: -99999999 → -99999998 → -99999997

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 71

Digital Root: 8

Palindrome: No

Factorization: 2 × 7 × 23 × 310559

Divisors: 1, 2, 7, 14, 23, 46, 161, 322, 310559, 621118

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -101111101011110000011111110

Octal: -575360376

Duodecimal: -295A6452

Hexadecimal: -5f5e0fe

Square: 9999999600000004

Square Root: 9999.999899999999

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

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 concatenated with k-4 gives the product of two numbers which differ by 5. A116130

Numbers k such that the digits of sqrt(k) begin with k. A307371

Numbers k such that k*(k+4) gives the concatenation of two numbers m and m-3. A116267

Numbers k such that k*(k+3) gives the concatenation of a number m with itself. A116287

n times n+5 gives the concatenation of two numbers m and m-6. A116249

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

Second-order base-10 grafting integers. A232087

Largest n-digit number ending in n. A279913

a(0) = 0; a(n) is obtained by incrementing each digit of a(n-1) by 2. A61513