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27012125 = 53730871
BaseRepresentation
bin110011100001…
…0110000011101
31212211100200002
41213002300131
523403342000
62402544045
7445412360
oct147026035
955740602
1027012125
111427a678
129068025
13579a00a
1438320d7
1525888d5
hex19c2c1d

27012125 has 16 divisors (see below), whose sum is σ = 38528256. Its totient is φ = 18522000.

The previous prime is 27012119. The next prime is 27012131. The reversal of 27012125 is 52121072.

It is an interprime number because it is at equal distance from previous prime (27012119) and next prime (27012131).

It is not a de Polignac number, because 27012125 - 214 = 26995741 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 27012097 and 27012106.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14561 + ... + 16310.

It is an arithmetic number, because the mean of its divisors is an integer number (2408016).

Almost surely, 227012125 is an apocalyptic number.

27012125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

27012125 is a deficient number, since it is larger than the sum of its proper divisors (11516131).

27012125 is an equidigital number, since it uses as much as digits as its factorization.

27012125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30893 (or 30883 counting only the distinct ones).

The product of its (nonzero) digits is 280, while the sum is 20.

The square root of 27012125 is about 5197.3190204181. The cubic root of 27012125 is about 300.0449006868.

Adding to 27012125 its reverse (52121072), we get a palindrome (79133197).

The spelling of 27012125 in words is "twenty-seven million, twelve thousand, one hundred twenty-five".

Divisors: 1 5 7 25 35 125 175 875 30871 154355 216097 771775 1080485 3858875 5402425 27012125