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27388055 = 523238157
BaseRepresentation
bin110100001111…
…0100010010111
31220112110100102
41220132202113
524002404210
62415004315
7451536362
oct150364227
956473312
1027388055
1114507062
12920969b
13589c166
1438cd0d9
15260eea5
hex1a1e897

27388055 has 8 divisors (see below), whose sum is σ = 34294752. Its totient is φ = 20957728.

The previous prime is 27388043. The next prime is 27388057. The reversal of 27388055 is 55088372.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 27388055 - 26 = 27387991 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 (27388057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 118964 + ... + 119193.

It is an arithmetic number, because the mean of its divisors is an integer number (4286844).

Almost surely, 227388055 is an apocalyptic number.

27388055 is a deficient number, since it is larger than the sum of its proper divisors (6906697).

27388055 is a wasteful number, since it uses less digits than its factorization.

27388055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238185.

The product of its (nonzero) digits is 67200, while the sum is 38.

The square root of 27388055 is about 5233.3598194659. The cubic root of 27388055 is about 301.4304096617.

The spelling of 27388055 in words is "twenty-seven million, three hundred eighty-eight thousand, fifty-five".

Divisors: 1 5 23 115 238157 1190785 5477611 27388055