Base | Representation |
---|---|
bin | 10111101010010… |
… | …01010100110101 |
3 | 111211110220000202 |
4 | 23311021110311 |
5 | 401302344310 |
6 | 31410050245 |
7 | 4630030256 |
oct | 1365112465 |
9 | 454426022 |
10 | 198481205 |
11 | a204595a |
12 | 56579985 |
13 | 32174c00 |
14 | 1c508b2d |
15 | 126593a5 |
hex | bd49535 |
198481205 has 48 divisors (see below), whose sum is σ = 280569744. Its totient is φ = 134184960.
The previous prime is 198481193. The next prime is 198481211. The reversal of 198481205 is 502184891.
It can be written as a sum of positive squares in 24 ways, for example, as 197514916 + 966289 = 14054^2 + 983^2 .
It is not a de Polignac number, because 198481205 - 28 = 198480949 is a prime.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 588797 + ... + 589133.
It is an arithmetic number, because the mean of its divisors is an integer number (5845203).
Almost surely, 2198481205 is an apocalyptic number.
It is an amenable number.
198481205 is a deficient number, since it is larger than the sum of its proper divisors (82088539).
198481205 is a wasteful number, since it uses less digits than its factorization.
198481205 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 426 (or 413 counting only the distinct ones).
The product of its (nonzero) digits is 23040, while the sum is 38.
The square root of 198481205 is about 14088.3357782245. The cubic root of 198481205 is about 583.3194567221.
The spelling of 198481205 in words is "one hundred ninety-eight million, four hundred eighty-one thousand, two hundred five".
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