Properties of the Number -199998

One Hundred Ninety-Nine Thousand Nine Hundred Ninety-Eight

Basics

Value: -199999 → -199998 → -199997

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 45

Digital Root: 9

Palindrome: No

Factorization: 2 × 3 ² × 41 × 271

Divisors: 1, 2, 3, 6, 9, 18, 41, 82, 123, 246

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -110000110100111110

Octal: -606476

Duodecimal: -978A6

Hexadecimal: -30d3e

Square: 39999200004

Square Root: 447.21135942639023

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

Expansion of ∏_m>=1 (1 - m·q^m)⁶. A22666

Smallest even number with digit sum n. A69532

a(n)*n = A112909(n). A112910

Number of nonzero palindromes less than 10ⁿ. A50250

a(n) = 2*(10ⁿ - 1). A86573

a(n) is the largest m such that there exists N such that none of S(N), S(N+1), ..., S(N+m-1) is divisible by n, where S(N) is the sum of digits of N. A331786

Numbers k such that 4·k-1 is the digit reversal of k-1. A83812

Integers·with h+1 digits that have the property that there exists an integer k, with x <= k < 2·x, such that k/x = 1 + (x-10^h)/(10^h-1), i.e., the same digits appear in the denominator and in the recurring decimal. A288781

a(n) = smallest non-palindromic number k such that the Reverse and Add! trajectory of k joins the trajectory of A089521(n). A89522

Triangle, T(n, k) = (1/2)*(n+2)! * [x^k]( p(x, n) ), where p(x,0) = 1, p(x,1) = -x, P(x, n) = (1/(n+1))*( (2·n-x)*P(x, n-1) - n·P(x, n-2) ), read by rows. A136532