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27855085 = 517931123
BaseRepresentation
bin110101001000…
…0100011101101
31221102011222211
41222100203231
524112330320
62433010421
7455523106
oct152204355
957364884
1027855085
11147a5a35
1293b3a11
135a038cb
1439b13ad
1526a355a
hex1a908ed

27855085 has 8 divisors (see below), whose sum is σ = 33613920. Its totient is φ = 22158864.

The previous prime is 27855073. The next prime is 27855089. The reversal of 27855085 is 58055872.

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 27855085 - 25 = 27855053 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27855089) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14667 + ... + 16456.

It is an arithmetic number, because the mean of its divisors is an integer number (4201740).

Almost surely, 227855085 is an apocalyptic number.

It is an amenable number.

27855085 is a deficient number, since it is larger than the sum of its proper divisors (5758835).

27855085 is a wasteful number, since it uses less digits than its factorization.

27855085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31307.

The product of its (nonzero) digits is 112000, while the sum is 40.

The square root of 27855085 is about 5277.7916783443. The cubic root of 27855085 is about 303.1341249954.

The spelling of 27855085 in words is "twenty-seven million, eight hundred fifty-five thousand, eighty-five".

Divisors: 1 5 179 895 31123 155615 5571017 27855085