Base | Representation |
---|---|
bin | 11100010010010011… |
… | …101001100011001000 |
3 | 2220101200002222120012 |
4 | 130102103221203020 |
5 | 444200202140010 |
6 | 21541435251052 |
7 | 2123433664022 |
oct | 342223514310 |
9 | 86350088505 |
10 | 30371911880 |
11 | 11976174a22 |
12 | 5a775a9a88 |
13 | 2b304509bb |
14 | 16819bb012 |
15 | bcb5e0005 |
hex | 7124e98c8 |
30371911880 has 32 divisors (see below), whose sum is σ = 68341976640. Its totient is φ = 12147844800.
The previous prime is 30371911847. The next prime is 30371911909. The reversal of 30371911880 is 8811917303.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 803567 + ... + 840513.
It is an arithmetic number, because the mean of its divisors is an integer number (2135686770).
Almost surely, 230371911880 is an apocalyptic number.
It is an amenable number.
30371911880 is an abundant number, since it is smaller than the sum of its proper divisors (37970064760).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30371911880 is a wasteful number, since it uses less digits than its factorization.
30371911880 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 57509 (or 57505 counting only the distinct ones).
The product of its (nonzero) digits is 36288, while the sum is 41.
The spelling of 30371911880 in words is "thirty billion, three hundred seventy-one million, nine hundred eleven thousand, eight hundred eighty".
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