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18627448112 = 2471312793577
BaseRepresentation
bin10001010110010010…
…000100110100110000
31210002011211102000122
4101112102010310300
5301122111314422
612320214505412
71226414460620
oct212622046460
953064742018
1018627448112
117999788519
12373a365268
1319ab219760
14c89cba880
157404e8d42
hex456484d30

18627448112 has 40 divisors (see below), whose sum is σ = 44419302816. Its totient is φ = 7369099776.

The previous prime is 18627448093. The next prime is 18627448129. The reversal of 18627448112 is 21184472681.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6395333 + ... + 6398244.

Almost surely, 218627448112 is an apocalyptic number.

It is an amenable number.

18627448112 is an abundant number, since it is smaller than the sum of its proper divisors (25791854704).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18627448112 is a wasteful number, since it uses less digits than its factorization.

18627448112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12793605 (or 12793599 counting only the distinct ones).

The product of its digits is 172032, while the sum is 44.

The spelling of 18627448112 in words is "eighteen billion, six hundred twenty-seven million, four hundred forty-eight thousand, one hundred twelve".

Divisors: 1 2 4 7 8 13 14 16 26 28 52 56 91 104 112 182 208 364 728 1456 12793577 25587154 51174308 89555039 102348616 166316501 179110078 204697232 332633002 358220156 665266004 716440312 1164215507 1330532008 1432880624 2328431014 2661064016 4656862028 9313724056 18627448112