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18332027 = 72374123
BaseRepresentation
bin100010111101…
…1100101111011
31021111100210222
41011323211323
514143111102
61452530255
7311551100
oct105734573
937440728
1018332027
11a39113a
12618098b
133a4b16c
142612aa7
151921aa2
hex117b97b

18332027 has 6 divisors (see below), whose sum is σ = 21325068. Its totient is φ = 15713124.

The previous prime is 18332023. The next prime is 18332047. The reversal of 18332027 is 72023381.

It is not a de Polignac number, because 18332027 - 22 = 18332023 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 18331987 and 18332005.

It is not an unprimeable number, because it can be changed into a prime (18332023) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 187013 + ... + 187110.

It is an arithmetic number, because the mean of its divisors is an integer number (3554178).

Almost surely, 218332027 is an apocalyptic number.

18332027 is a deficient number, since it is larger than the sum of its proper divisors (2993041).

18332027 is an equidigital number, since it uses as much as digits as its factorization.

18332027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 374137 (or 374130 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 18332027 is about 4281.5916433028. The cubic root of 18332027 is about 263.6757334531.

The spelling of 18332027 in words is "eighteen million, three hundred thirty-two thousand, twenty-seven".

Divisors: 1 7 49 374123 2618861 18332027