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30130123030 = 257271866057
BaseRepresentation
bin11100000011111001…
…010011000100010110
32212202211010211121121
4130003321103010112
5443201302414110
621501441034154
72114436551200
oct340371230426
985684124547
1030130123030
111186173a427
125a0a62595a
132ac2324887
14165b83b770
15bb527dcda
hex703e53116

30130123030 has 48 divisors (see below), whose sum is σ = 63977436576. Its totient is φ = 10184818560.

The previous prime is 30130123007. The next prime is 30130123033. The reversal of 30130123030 is 3032103103.

It is a junction number, because it is equal to n+sod(n) for n = 30130122995 and 30130123013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30130123033) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 398239 + ... + 467818.

It is an arithmetic number, because the mean of its divisors is an integer number (1332863262).

Almost surely, 230130123030 is an apocalyptic number.

30130123030 is an abundant number, since it is smaller than the sum of its proper divisors (33847313546).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30130123030 is a wasteful number, since it uses less digits than its factorization.

30130123030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 866149 (or 866142 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 16.

Adding to 30130123030 its reverse (3032103103), we get a palindrome (33162226133).

The spelling of 30130123030 in words is "thirty billion, one hundred thirty million, one hundred twenty-three thousand, thirty".

Divisors: 1 2 5 7 10 14 35 49 70 71 98 142 245 355 490 497 710 994 2485 3479 4970 6958 17395 34790 866057 1732114 4330285 6062399 8660570 12124798 30311995 42436793 60623990 61490047 84873586 122980094 212183965 307450235 424367930 430430329 614900470 860860658 2152151645 3013012303 4304303290 6026024606 15065061515 30130123030