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18229075 = 521938377
BaseRepresentation
bin100010110001…
…0011101010011
31021022010120221
41011202131103
514131312300
61450413511
7310641664
oct105423523
937263527
1018229075
11a320857
126131297
133a13347
1425c736b
15190131a
hex1162753

18229075 has 12 divisors (see below), whose sum is σ = 23794360. Its totient is φ = 13815360.

The previous prime is 18229073. The next prime is 18229097. The reversal of 18229075 is 57092281.

It is not a de Polignac number, because 18229075 - 21 = 18229073 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 18229075.

It is not an unprimeable number, because it can be changed into a prime (18229073) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18714 + ... + 19663.

Almost surely, 218229075 is an apocalyptic number.

18229075 is a deficient number, since it is larger than the sum of its proper divisors (5565285).

18229075 is a wasteful number, since it uses less digits than its factorization.

18229075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38406 (or 38401 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 34.

The square root of 18229075 is about 4269.5520842355. The cubic root of 18229075 is about 263.1812087590.

The spelling of 18229075 in words is "eighteen million, two hundred twenty-nine thousand, seventy-five".

Divisors: 1 5 19 25 95 475 38377 191885 729163 959425 3645815 18229075