Base | Representation |
---|---|
bin | 111111011010100000… |
… | …001101000000101100 |
3 | 20111202100001220202221 |
4 | 333122200031000230 |
5 | 2103422114300203 |
6 | 51140313125124 |
7 | 4630225501213 |
oct | 773240150054 |
9 | 214670056687 |
10 | 68090384428 |
11 | 26971279690 |
12 | 112433b97a4 |
13 | 6561928201 |
14 | 341d16807a |
15 | 1b87b53abd |
hex | fda80d02c |
68090384428 has 12 divisors (see below), whose sum is σ = 129990733992. Its totient is φ = 30950174720.
The previous prime is 68090384423. The next prime is 68090384443. The reversal of 68090384428 is 82448309086.
It is not an unprimeable number, because it can be changed into a prime (68090384423) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 773754325 + ... + 773754412.
It is an arithmetic number, because the mean of its divisors is an integer number (10832561166).
Almost surely, 268090384428 is an apocalyptic number.
It is an amenable number.
68090384428 is a deficient number, since it is larger than the sum of its proper divisors (61900349564).
68090384428 is a wasteful number, since it uses less digits than its factorization.
68090384428 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1547508752 (or 1547508750 counting only the distinct ones).
The product of its (nonzero) digits is 2654208, while the sum is 52.
The spelling of 68090384428 in words is "sixty-eight billion, ninety million, three hundred eighty-four thousand, four hundred twenty-eight".
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