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30757815130 = 2572319104233
BaseRepresentation
bin11100101001010011…
…110000001101011010
32221101120020220022011
4130221103300031122
51000443000041010
622044022420134
72136131054260
oct345123601532
987346226264
1030757815130
1112053a91829
125b6489164a
132b92397b13
1416bad52430
15c0041ba8a
hex7294f035a

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".

Divisors: 1 2 5 7 10 14 23 35 46 70 115 161 230 322 805 1610 19104233 38208466 95521165 133729631 191042330 267459262 439397359 668648155 878794718 1337296310 2196986795 3075781513 4393973590 6151563026 15378907565 30757815130