Base | Representation |
---|---|
bin | 11100110000010001… |
… | …001011100000010000 |
3 | 2221200200222012222022 |
4 | 130300101023200100 |
5 | 1001212343043013 |
6 | 22103353231012 |
7 | 2142046415465 |
oct | 346021134020 |
9 | 87620865868 |
10 | 30874581008 |
11 | 12103994757 |
12 | 5b97a02468 |
13 | 2bb062b95b |
14 | 16cc66966c |
15 | c0a7d4008 |
hex | 73044b810 |
30874581008 has 20 divisors (see below), whose sum is σ = 63338295420. Its totient is φ = 14529214464.
The previous prime is 30874580981. The next prime is 30874581019. The reversal of 30874581008 is 80018547803.
It can be written as a sum of positive squares in 2 ways, for example, as 8294109184 + 22580471824 = 91072^2 + 150268^2 .
It is a self number, because there is not a number n which added to its sum of digits gives 30874581008.
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, 56754473 + ... + 56755016.
It is an arithmetic number, because the mean of its divisors is an integer number (3166914771).
Almost surely, 230874581008 is an apocalyptic number.
It is an amenable number.
30874581008 is an abundant number, since it is smaller than the sum of its proper divisors (32463714412).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30874581008 is a wasteful number, since it uses less digits than its factorization.
30874581008 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 113509514 (or 113509508 counting only the distinct ones).
The product of its (nonzero) digits is 215040, while the sum is 44.
The spelling of 30874581008 in words is "thirty billion, eight hundred seventy-four million, five hundred eighty-one thousand, eight".
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