Base | Representation |
---|---|
bin | 11100101111111110… |
… | …100001011111110011 |
3 | 2221200100202202021000 |
4 | 130233332201133303 |
5 | 1001210120042410 |
6 | 22103100333043 |
7 | 2141660016150 |
oct | 345776413763 |
9 | 87610682230 |
10 | 30869690355 |
11 | 12101154299 |
12 | 5b96244183 |
13 | 2bac60888a |
14 | 16cbb55227 |
15 | c0a169dc0 |
hex | 72ffa17f3 |
30869690355 has 128 divisors (see below), whose sum is σ = 66157977600. Its totient is φ = 13341283200.
The previous prime is 30869690347. The next prime is 30869690387. The reversal of 30869690355 is 55309696803.
It is not a de Polignac number, because 30869690355 - 23 = 30869690347 is a prime.
It is a super-2 number, since 2×308696903552 (a number of 22 digits) contains 22 as substring.
It is an unprimeable number.
It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 10250800 + ... + 10253810.
It is an arithmetic number, because the mean of its divisors is an integer number (516859200).
Almost surely, 230869690355 is an apocalyptic number.
30869690355 is a gapful number since it is divisible by the number (35) formed by its first and last digit.
30869690355 is an abundant number, since it is smaller than the sum of its proper divisors (35288287245).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30869690355 is a wasteful number, since it uses less digits than its factorization.
30869690355 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3622 (or 3616 counting only the distinct ones).
The product of its (nonzero) digits is 5248800, while the sum is 54.
The spelling of 30869690355 in words is "thirty billion, eight hundred sixty-nine million, six hundred ninety thousand, three hundred fifty-five".
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