Base | Representation |
---|---|
bin | 11100101011000100… |
… | …111100000000000000 |
3 | 2221110122002022200000 |
4 | 130223010330000000 |
5 | 1001023044020241 |
6 | 22051002400000 |
7 | 2136641211342 |
oct | 345304740000 |
9 | 87418068600 |
10 | 30787485696 |
11 | 12069807760 |
12 | 5b72800000 |
13 | 2b98585b76 |
14 | 16c0c77292 |
15 | c02d2ceb6 |
hex | 72b13c000 |
30787485696 has 720 divisors, whose sum is σ = 108775954560. Its totient is φ = 8599633920.
The previous prime is 30787485679. The next prime is 30787485697. The reversal of 30787485696 is 69658478703.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30787485697) by changing a digit.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 832094190 + ... + 832094226.
Almost surely, 230787485696 is an apocalyptic number.
30787485696 is a gapful number since it is divisible by the number (36) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 30787485696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54387977280).
30787485696 is an abundant number, since it is smaller than the sum of its proper divisors (77988468864).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30787485696 is an equidigital number, since it uses as much as digits as its factorization.
30787485696 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 110 (or 72 counting only the distinct ones).
The product of its (nonzero) digits is 60963840, while the sum is 63.
The spelling of 30787485696 in words is "thirty billion, seven hundred eighty-seven million, four hundred eighty-five thousand, six hundred ninety-six".
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