Base | Representation |
---|---|
bin | 110011101111110… |
… | …111010000101010 |
3 | 2020111122101002211 |
4 | 303233313100222 |
5 | 3234223411010 |
6 | 222052115334 |
7 | 30341310661 |
oct | 6357672052 |
9 | 2214571084 |
10 | 868185130 |
11 | 40608237a |
12 | 202905b4a |
13 | 10ab37617 |
14 | 83437dd8 |
15 | 5134508a |
hex | 33bf742a |
868185130 has 16 divisors (see below), whose sum is σ = 1563421824. Its totient is φ = 347121040.
The previous prime is 868185067. The next prime is 868185139. The reversal of 868185130 is 31581868.
It is not an unprimeable number, because it can be changed into a prime (868185139) 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, 6315 + ... + 42145.
It is an arithmetic number, because the mean of its divisors is an integer number (97713864).
Almost surely, 2868185130 is an apocalyptic number.
868185130 is a deficient number, since it is larger than the sum of its proper divisors (695236694).
868185130 is a wasteful number, since it uses less digits than its factorization.
868185130 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 38261.
The product of its (nonzero) digits is 46080, while the sum is 40.
The square root of 868185130 is about 29464.9814186264. The cubic root of 868185130 is about 953.9759973275.
The spelling of 868185130 in words is "eight hundred sixty-eight million, one hundred eighty-five thousand, one hundred thirty".
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