Base | Representation |
---|---|
bin | 10010011110011111… |
… | …100110111010111000 |
3 | 1220012121111100022020 |
4 | 102132133212322320 |
5 | 311112233031232 |
6 | 13040333354440 |
7 | 1301425223340 |
oct | 223637467270 |
9 | 56177440266 |
10 | 19838955192 |
11 | 8460633741 |
12 | 3a18038a20 |
13 | 1b4220c754 |
14 | d62b63d20 |
15 | 7b1a58e2c |
hex | 49e7e6eb8 |
19838955192 has 32 divisors (see below), whose sum is σ = 56682729600. Its totient is φ = 5668272864.
The previous prime is 19838955179. The next prime is 19838955209. The reversal of 19838955192 is 29155983891.
It is a super-3 number, since 3×198389551923 (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59044342 + ... + 59044677.
It is an arithmetic number, because the mean of its divisors is an integer number (1771335300).
Almost surely, 219838955192 is an apocalyptic number.
19838955192 is a gapful number since it is divisible by the number (12) formed by its first and last digit.
It is an amenable number.
19838955192 is an abundant number, since it is smaller than the sum of its proper divisors (36843774408).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
19838955192 is a wasteful number, since it uses less digits than its factorization.
19838955192 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 118089035 (or 118089031 counting only the distinct ones).
The product of its digits is 6998400, while the sum is 60.
The spelling of 19838955192 in words is "nineteen billion, eight hundred thirty-eight million, nine hundred fifty-five thousand, one hundred ninety-two".
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