Base | Representation |
---|---|
bin | 1011010100011100000… |
… | …10101110000111011000 |
3 | 1101011220012122221021212 |
4 | 11222032002232013120 |
5 | 22333012103300423 |
6 | 454401054322252 |
7 | 40046023411430 |
oct | 5521602560730 |
9 | 1334805587255 |
10 | 388930134488 |
11 | 13aa42a15615 |
12 | 63463ab9388 |
13 | 2a8a30c146c |
14 | 14b77d072c0 |
15 | a1b4b58578 |
hex | 5a8e0ae1d8 |
388930134488 has 16 divisors (see below), whose sum is σ = 833421716880. Its totient is φ = 166684343328.
The previous prime is 388930134431. The next prime is 388930134497. The reversal of 388930134488 is 884431039883.
It is a happy number.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3472590431 + ... + 3472590542.
It is an arithmetic number, because the mean of its divisors is an integer number (52088857305).
Almost surely, 2388930134488 is an apocalyptic number.
It is an amenable number.
388930134488 is an abundant number, since it is smaller than the sum of its proper divisors (444491582392).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
388930134488 is a wasteful number, since it uses less digits than its factorization.
388930134488 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 6945180986 (or 6945180982 counting only the distinct ones).
The product of its (nonzero) digits is 15925248, while the sum is 59.
The spelling of 388930134488 in words is "three hundred eighty-eight billion, nine hundred thirty million, one hundred thirty-four thousand, four hundred eighty-eight".
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