Base | Representation |
---|---|
bin | 11100000101011111… |
… | …111110001001101010 |
3 | 2212211200210021021020 |
4 | 130011133332021222 |
5 | 443230200210221 |
6 | 21504241553310 |
7 | 2115214411062 |
oct | 340537761152 |
9 | 85750707236 |
10 | 30157038186 |
11 | 11875953160 |
12 | 5a17645836 |
13 | 2ac7a896c2 |
14 | 16612463a2 |
15 | bb77e8ac6 |
hex | 7057fe26a |
30157038186 has 16 divisors (see below), whose sum is σ = 65797174368. Its totient is φ = 9138496400.
The previous prime is 30157038181. The next prime is 30157038193. The reversal of 30157038186 is 68183075103.
It is not an unprimeable number, because it can be changed into a prime (30157038181) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 228462345 + ... + 228462476.
It is an arithmetic number, because the mean of its divisors is an integer number (4112323398).
Almost surely, 230157038186 is an apocalyptic number.
30157038186 is an abundant number, since it is smaller than the sum of its proper divisors (35640136182).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30157038186 is a wasteful number, since it uses less digits than its factorization.
30157038186 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 456924837.
The product of its (nonzero) digits is 120960, while the sum is 42.
The spelling of 30157038186 in words is "thirty billion, one hundred fifty-seven million, thirty-eight thousand, one hundred eighty-six".
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