Base | Representation |
---|---|
bin | 11100101110001011… |
… | …001100110010110000 |
3 | 2221121020212211121220 |
4 | 130232023030302300 |
5 | 1001124400141432 |
6 | 22100100345040 |
7 | 2141142035106 |
oct | 345613146260 |
9 | 87536784556 |
10 | 30839458992 |
11 | 12096085aa1 |
12 | 5b880a5180 |
13 | 2ba62824b4 |
14 | 16c7b25c76 |
15 | c0769772c |
hex | 72e2cccb0 |
30839458992 has 20 divisors (see below), whose sum is σ = 79668602520. Its totient is φ = 10279819648.
The previous prime is 30839458981. The next prime is 30839459017. The reversal of 30839458992 is 29985493803.
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 3 ways as a sum of consecutive naturals, for example, 321244317 + ... + 321244412.
It is an arithmetic number, because the mean of its divisors is an integer number (3983430126).
Almost surely, 230839458992 is an apocalyptic number.
It is an amenable number.
30839458992 is an abundant number, since it is smaller than the sum of its proper divisors (48829143528).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30839458992 is a wasteful number, since it uses less digits than its factorization.
30839458992 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 642488740 (or 642488734 counting only the distinct ones).
The product of its (nonzero) digits is 16796160, while the sum is 60.
The spelling of 30839458992 in words is "thirty billion, eight hundred thirty-nine million, four hundred fifty-eight thousand, nine hundred ninety-two".
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