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18106627 = 73114799
BaseRepresentation
bin100010100010…
…0100100000011
31021001220121211
41011010210003
514113403002
61444030551
7306622000
oct105044403
937056554
1018106627
11a247860
126092457
13399c6a6
1425948a7
1518c9dd7
hex1144903

18106627 has 16 divisors (see below), whose sum is σ = 23040000. Its totient is φ = 14106120.

The previous prime is 18106619. The next prime is 18106637. The reversal of 18106627 is 72660181.

It is not a de Polignac number, because 18106627 - 23 = 18106619 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18106637) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1374 + ... + 6172.

It is an arithmetic number, because the mean of its divisors is an integer number (1440000).

Almost surely, 218106627 is an apocalyptic number.

18106627 is a deficient number, since it is larger than the sum of its proper divisors (4933373).

18106627 is an equidigital number, since it uses as much as digits as its factorization.

18106627 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4831 (or 4817 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 18106627 is about 4255.1882449546. The cubic root of 18106627 is about 262.5906057595.

The spelling of 18106627 in words is "eighteen million, one hundred six thousand, six hundred twenty-seven".

Divisors: 1 7 11 49 77 343 539 3773 4799 33593 52789 235151 369523 1646057 2586661 18106627