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30316121425 = 528316389633
BaseRepresentation
bin11100001110111110…
…110100110101010001
32220020210010112110001
4130032332310311101
5444041411341200
621532123410001
72122155531442
oct341676646521
986223115401
1030316121425
1111947729807
125a60983901
132b21a18ab5
1416784172c9
15bc676e76a
hex70efb4d51

30316121425 has 24 divisors (see below), whose sum is σ = 38278737504. Its totient is φ = 23813429760.

The previous prime is 30316121411. The next prime is 30316121447. The reversal of 30316121425 is 52412161303.

It is not a de Polignac number, because 30316121425 - 211 = 30316119377 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30316121393 and 30316121402.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 293409 + ... + 383041.

It is an arithmetic number, because the mean of its divisors is an integer number (1594947396).

Almost surely, 230316121425 is an apocalyptic number.

It is an amenable number.

30316121425 is a deficient number, since it is larger than the sum of its proper divisors (7962616079).

30316121425 is a wasteful number, since it uses less digits than its factorization.

30316121425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89889 (or 89884 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 28.

Adding to 30316121425 its reverse (52412161303), we get a palindrome (82728282728).

The spelling of 30316121425 in words is "thirty billion, three hundred sixteen million, one hundred twenty-one thousand, four hundred twenty-five".

Divisors: 1 5 25 83 163 415 815 2075 4075 13529 67645 89633 338225 448165 2240825 7439539 14610179 37197695 73050895 185988475 365254475 1212644857 6063224285 30316121425