Base | Representation |
---|---|
bin | 10001000111010100… |
… | …001010101100001110 |
3 | 1202102200022200222011 |
4 | 101013110022230032 |
5 | 300113320310230 |
6 | 12235244411434 |
7 | 1220245204000 |
oct | 210724125416 |
9 | 52380280864 |
10 | 18376338190 |
11 | 787aa66961 |
12 | 368a246b7a |
13 | 196b1a8ac2 |
14 | c647d2370 |
15 | 728445e2a |
hex | 44750ab0e |
18376338190 has 128 divisors (see below), whose sum is σ = 41313888000. Its totient is φ = 5861560320.
The previous prime is 18376338163. The next prime is 18376338199. The reversal of 18376338190 is 9183367381.
It is a super-2 number, since 2×183763381902 (a number of 21 digits) contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (49).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (18376338199) by changing a digit.
It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5187820 + ... + 5191360.
It is an arithmetic number, because the mean of its divisors is an integer number (322764750).
Almost surely, 218376338190 is an apocalyptic number.
18376338190 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
18376338190 is an abundant number, since it is smaller than the sum of its proper divisors (22937549810).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
18376338190 is a wasteful number, since it uses less digits than its factorization.
18376338190 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3675 (or 3661 counting only the distinct ones).
The product of its (nonzero) digits is 653184, while the sum is 49.
The spelling of 18376338190 in words is "eighteen billion, three hundred seventy-six million, three hundred thirty-eight thousand, one hundred ninety".
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