Search a number
-
+
18094543908 = 22371491445713
BaseRepresentation
bin10000110110100001…
…001101010000100100
31201201001002001212220
4100312201031100210
5244024200401113
612151300512340
71210254041220
oct206641152044
951631061786
1018094543908
117745997721
12360b9ab6b0
1319249b381c
14c391db780
1570d831523
hex43684d424

18094543908 has 48 divisors (see below), whose sum is σ = 48575990400. Its totient is φ = 5135169024.

The previous prime is 18094543879. The next prime is 18094543919. The reversal of 18094543908 is 80934549081.

It is a hoax number, since the sum of its digits (51) coincides with the sum of the digits of its distinct prime factors.

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 15 ways as a sum of consecutive naturals, for example, 710341 + ... + 735372.

It is an arithmetic number, because the mean of its divisors is an integer number (1011999800).

Almost surely, 218094543908 is an apocalyptic number.

It is an amenable number.

18094543908 is an abundant number, since it is smaller than the sum of its proper divisors (30481446492).

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

18094543908 is a wasteful number, since it uses less digits than its factorization.

18094543908 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1445876 (or 1445874 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 51.

The spelling of 18094543908 in words is "eighteen billion, ninety-four million, five hundred forty-three thousand, nine hundred eight".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 84 149 298 447 596 894 1043 1788 2086 3129 4172 6258 12516 1445713 2891426 4337139 5782852 8674278 10119991 17348556 20239982 30359973 40479964 60719946 121439892 215411237 430822474 646233711 861644948 1292467422 1507878659 2584934844 3015757318 4523635977 6031514636 9047271954 18094543908