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30988530850 = 2525227118571
BaseRepresentation
bin11100110111000011…
…110111010010100010
32221222122101110202211
4130313003313102202
51001431030441400
622122543432334
72144632110664
oct346703672242
987878343684
1030988530850
1112162243982
126009bb56aa
132bcb117ab4
1416dd84c534
15c157e1dba
hex7370f74a2

30988530850 has 24 divisors (see below), whose sum is σ = 57650180688. Its totient is φ = 12392936400.

The previous prime is 30988530817. The next prime is 30988530877. The reversal of 30988530850 is 5803588903.

It is a junction number, because it is equal to n+sod(n) for n = 30988530794 and 30988530803.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 202065 + ... + 320635.

It is an arithmetic number, because the mean of its divisors is an integer number (2402090862).

Almost surely, 230988530850 is an apocalyptic number.

30988530850 is a deficient number, since it is larger than the sum of its proper divisors (26661649838).

30988530850 is a wasteful number, since it uses less digits than its factorization.

30988530850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123810 (or 123805 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 49.

The spelling of 30988530850 in words is "thirty billion, nine hundred eighty-eight million, five hundred thirty thousand, eight hundred fifty".

Divisors: 1 2 5 10 25 50 5227 10454 26135 52270 118571 130675 237142 261350 592855 1185710 2964275 5928550 619770617 1239541234 3098853085 6197706170 15494265425 30988530850