Base | Representation |
---|---|
bin | 11100101110000101… |
… | …100010000001001100 |
3 | 2221121011002100022200 |
4 | 130232011202001030 |
5 | 1001124010114233 |
6 | 22100004441500 |
7 | 2141123306010 |
oct | 345605420114 |
9 | 87534070280 |
10 | 30837973068 |
11 | 12095260661 |
12 | 5b876a9290 |
13 | 2ba5b82056 |
14 | 16c785a540 |
15 | c074a2313 |
hex | 72e16204c |
30837973068 has 36 divisors (see below), whose sum is σ = 89087478480. Its totient is φ = 8810849376.
The previous prime is 30837973057. The next prime is 30837973073. The reversal of 30837973068 is 86037973803.
It is a tau number, because it is divible by the number of its divisors (36).
It is a super-3 number, since 3×308379730683 (a number of 32 digits) contains 333 as substring.
It is an unprimeable number.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 61186203 + ... + 61186706.
It is an arithmetic number, because the mean of its divisors is an integer number (2474652180).
Almost surely, 230837973068 is an apocalyptic number.
It is an amenable number.
30837973068 is an abundant number, since it is smaller than the sum of its proper divisors (58249505412).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30837973068 is a wasteful number, since it uses less digits than its factorization.
30837973068 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 122372926 (or 122372921 counting only the distinct ones).
The product of its (nonzero) digits is 4572288, while the sum is 54.
The spelling of 30837973068 in words is "thirty billion, eight hundred thirty-seven million, nine hundred seventy-three thousand, sixty-eight".
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