Base | Representation |
---|---|
bin | 11100101001010011… |
… | …110000001101011010 |
3 | 2221101120020220022011 |
4 | 130221103300031122 |
5 | 1000443000041010 |
6 | 22044022420134 |
7 | 2136131054260 |
oct | 345123601532 |
9 | 87346226264 |
10 | 30757815130 |
11 | 12053a91829 |
12 | 5b6489164a |
13 | 2b92397b13 |
14 | 16bad52430 |
15 | c0041ba8a |
hex | 7294f035a |
30757815130 has 32 divisors (see below), whose sum is σ = 66024232704. Its totient is φ = 10087034496.
The previous prime is 30757815119. The next prime is 30757815139. The reversal of 30757815130 is 3151875703.
It is not an unprimeable number, because it can be changed into a prime (30757815139) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9550507 + ... + 9553726.
It is an arithmetic number, because the mean of its divisors is an integer number (2063257272).
Almost surely, 230757815130 is an apocalyptic number.
30757815130 is an abundant number, since it is smaller than the sum of its proper divisors (35266417574).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30757815130 is a wasteful number, since it uses less digits than its factorization.
30757815130 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 19104270.
The product of its (nonzero) digits is 88200, while the sum is 40.
The spelling of 30757815130 in words is "thirty billion, seven hundred fifty-seven million, eight hundred fifteen thousand, one hundred thirty".
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