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30315728873 = 172351758519
BaseRepresentation
bin11100001110111101…
…010100111111101001
32220020202101120222002
4130032331110333221
5444041311310443
621532111140345
72122152305123
oct341675247751
986222346862
1030315728873
1111947490891
125a608146b5
132b2190c211
141678354213
15bc66e32b8
hex70ef54fe9

30315728873 has 8 divisors (see below), whose sum is σ = 32112702720. Its totient is φ = 28520276800.

The previous prime is 30315728857. The next prime is 30315728881. The reversal of 30315728873 is 37882751303.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 30315728873 - 24 = 30315728857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30315728843) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 339293 + ... + 419226.

It is an arithmetic number, because the mean of its divisors is an integer number (4014087840).

Almost surely, 230315728873 is an apocalyptic number.

It is an amenable number.

30315728873 is a deficient number, since it is larger than the sum of its proper divisors (1796973847).

30315728873 is a wasteful number, since it uses less digits than its factorization.

30315728873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 760887.

The product of its (nonzero) digits is 846720, while the sum is 47.

The spelling of 30315728873 in words is "thirty billion, three hundred fifteen million, seven hundred twenty-eight thousand, eight hundred seventy-three".

Divisors: 1 17 2351 39967 758519 12894823 1783278169 30315728873