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30017445872 = 2413926475099
BaseRepresentation
bin11011111101001011…
…011101111111110000
32212110222010020121112
4123331023131333300
5442433431231442
621442334012452
72111601036311
oct337513357760
985428106545
1030017445872
111180407a407
125998947128
132aa4b92abb
14164a8aa608
15baa423082
hex6fd2ddff0

30017445872 has 40 divisors (see below), whose sum is σ = 58610832000. Its totient is φ = 14892196032.

The previous prime is 30017445869. The next prime is 30017445881. The reversal of 30017445872 is 27854471003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5884379 + ... + 5889477.

It is an arithmetic number, because the mean of its divisors is an integer number (1465270800).

Almost surely, 230017445872 is an apocalyptic number.

It is an amenable number.

30017445872 is a deficient number, since it is larger than the sum of its proper divisors (28593386128).

30017445872 is a wasteful number, since it uses less digits than its factorization.

30017445872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7893 (or 7887 counting only the distinct ones).

The product of its (nonzero) digits is 188160, while the sum is 41.

The spelling of 30017445872 in words is "thirty billion, seventeen million, four hundred forty-five thousand, eight hundred seventy-two".

Divisors: 1 2 4 8 16 139 278 556 1112 2224 2647 5099 5294 10198 10588 20396 21176 40792 42352 81584 367933 708761 735866 1417522 1471732 2835044 2943464 5670088 5886928 11340176 13497053 26994106 53988212 107976424 215952848 1876090367 3752180734 7504361468 15008722936 30017445872