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30115343652 = 2232509611971
BaseRepresentation
bin11100000011000000…
…111010110100100100
32212201210022222010020
4130003000322310210
5443134011444102
621500152155140
72114200124502
oct340300726444
985653288106
1030115343652
1111854365469
125a05698ab0
132abc24b794
1416598b1672
15bb3d0ebbc
hex70303ad24

30115343652 has 12 divisors (see below), whose sum is σ = 70269135216. Its totient is φ = 10038447880.

The previous prime is 30115343611. The next prime is 30115343677. The reversal of 30115343652 is 25634351103.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1254805974 + ... + 1254805997.

It is an arithmetic number, because the mean of its divisors is an integer number (5855761268).

Almost surely, 230115343652 is an apocalyptic number.

It is an amenable number.

30115343652 is an abundant number, since it is smaller than the sum of its proper divisors (40153791564).

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

30115343652 is a wasteful number, since it uses less digits than its factorization.

30115343652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2509611978 (or 2509611976 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 33.

Adding to 30115343652 its reverse (25634351103), we get a palindrome (55749694755).

The spelling of 30115343652 in words is "thirty billion, one hundred fifteen million, three hundred forty-three thousand, six hundred fifty-two".

Divisors: 1 2 3 4 6 12 2509611971 5019223942 7528835913 10038447884 15057671826 30115343652