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18929468 = 2231152657
BaseRepresentation
bin100100000110…
…1011100111100
31022121201100102
41020031130330
514321220333
61513420232
7316616645
oct110153474
938551312
1018929468
11a759a98
12640a678
133bca08c
14272a6cc
1519ddae8
hex120d73c

18929468 has 12 divisors (see below), whose sum is σ = 34195392. Its totient is φ = 9159360.

The previous prime is 18929447. The next prime is 18929473. The reversal of 18929468 is 86492981.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76205 + ... + 76452.

It is an arithmetic number, because the mean of its divisors is an integer number (2849616).

Almost surely, 218929468 is an apocalyptic number.

It is an amenable number.

18929468 is a deficient number, since it is larger than the sum of its proper divisors (15265924).

18929468 is a wasteful number, since it uses less digits than its factorization.

18929468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152692 (or 152690 counting only the distinct ones).

The product of its digits is 248832, while the sum is 47.

The square root of 18929468 is about 4350.8008458214. The cubic root of 18929468 is about 266.5095664942.

The spelling of 18929468 in words is "eighteen million, nine hundred twenty-nine thousand, four hundred sixty-eight".

Divisors: 1 2 4 31 62 124 152657 305314 610628 4732367 9464734 18929468