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30528030275 = 525879207709
BaseRepresentation
bin11100011011100111…
…001100011001000011
32220210112212121201222
4130123213030121003
51000010133432100
622005133345255
72130340655501
oct343347143103
986715777658
1030528030275
1111a46305a96
125abb93822b
132b568b2752
141698619671
15bda17c485
hex71b9cc643

30528030275 has 12 divisors (see below), whose sum is σ = 37861378800. Its totient is φ = 24418152480.

The previous prime is 30528030199. The next prime is 30528030289. The reversal of 30528030275 is 57203082503.

It is not a de Polignac number, because 30528030275 - 232 = 26233062979 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 43121 + ... + 250829.

It is an arithmetic number, because the mean of its divisors is an integer number (3155114900).

Almost surely, 230528030275 is an apocalyptic number.

30528030275 is a deficient number, since it is larger than the sum of its proper divisors (7333348525).

30528030275 is a wasteful number, since it uses less digits than its factorization.

30528030275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213598 (or 213593 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 35.

The spelling of 30528030275 in words is "thirty billion, five hundred twenty-eight million, thirty thousand, two hundred seventy-five".

Divisors: 1 5 25 5879 29395 146975 207709 1038545 5192725 1221121211 6105606055 30528030275