Base | Representation |
---|---|
bin | 10001000011001111… |
… | …001111010001100110 |
3 | 1202020220121120200220 |
4 | 101003033033101212 |
5 | 244443312444012 |
6 | 12224402345210 |
7 | 1215454620510 |
oct | 210317172146 |
9 | 52226546626 |
10 | 18307937382 |
11 | 7845398369 |
12 | 366b35b206 |
13 | 1959c7a157 |
14 | c596a8bb0 |
15 | 72243408c |
hex | 4433cf466 |
18307937382 has 32 divisors (see below), whose sum is σ = 41851663872. Its totient is φ = 5230220544.
The previous prime is 18307937363. The next prime is 18307937411. The reversal of 18307937382 is 28373970381.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 427143 + ... + 468045.
It is an arithmetic number, because the mean of its divisors is an integer number (1307864496).
Almost surely, 218307937382 is an apocalyptic number.
18307937382 is an abundant number, since it is smaller than the sum of its proper divisors (23543726490).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
18307937382 is a wasteful number, since it uses less digits than its factorization.
18307937382 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 51572.
The product of its (nonzero) digits is 1524096, while the sum is 51.
The spelling of 18307937382 in words is "eighteen billion, three hundred seven million, nine hundred thirty-seven thousand, three hundred eighty-two".
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