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18068924 = 2219237749
BaseRepresentation
bin100010011101…
…1010110111100
31020222222220102
41010323112330
514111201144
61443140232
7306404036
oct104732674
936888812
1018068924
11a2214a5
126074678
133988493
142584c56
1518bdb4e
hex113b5bc

18068924 has 12 divisors (see below), whose sum is σ = 33285000. Its totient is φ = 8558928.

The previous prime is 18068923. The next prime is 18068933. The reversal of 18068924 is 42986081.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18068923) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 118799 + ... + 118950.

It is an arithmetic number, because the mean of its divisors is an integer number (2773750).

Almost surely, 218068924 is an apocalyptic number.

It is an amenable number.

18068924 is a deficient number, since it is larger than the sum of its proper divisors (15216076).

18068924 is a wasteful number, since it uses less digits than its factorization.

18068924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237772 (or 237770 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 38.

The square root of 18068924 is about 4250.7556975201. The cubic root of 18068924 is about 262.4082170427.

The spelling of 18068924 in words is "eighteen million, sixty-eight thousand, nine hundred twenty-four".

Divisors: 1 2 4 19 38 76 237749 475498 950996 4517231 9034462 18068924