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30348893523 = 3131171966403
BaseRepresentation
bin11100010000111011…
…110101110101010011
32220100001210112022110
4130100323311311103
5444123304043043
621535254040403
72123034224064
oct342073656523
986301715273
1030348893523
1111964182993
125a6b949103
132b28751780
14167c90856b
15bc9594b33
hex710ef5d53

30348893523 has 16 divisors (see below), whose sum is σ = 43582273280. Its totient is φ = 18674367264.

The previous prime is 30348893521. The next prime is 30348893563. The reversal of 30348893523 is 32539884303.

It is not a de Polignac number, because 30348893523 - 21 = 30348893521 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30348893521) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 423840 + ... + 490242.

It is an arithmetic number, because the mean of its divisors is an integer number (2723892080).

Almost surely, 230348893523 is an apocalyptic number.

30348893523 is a deficient number, since it is larger than the sum of its proper divisors (13233379757).

30348893523 is a wasteful number, since it uses less digits than its factorization.

30348893523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78138.

The product of its (nonzero) digits is 1866240, while the sum is 48.

The spelling of 30348893523 in words is "thirty billion, three hundred forty-eight million, eight hundred ninety-three thousand, five hundred twenty-three".

Divisors: 1 3 13 39 11719 35157 66403 152347 199209 457041 863239 2589717 778176757 2334530271 10116297841 30348893523