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27085389 = 328033221
BaseRepresentation
bin110011101010…
…0101001001101
31212222002011120
41213110221031
523413213024
62404311153
7446136102
oct147245115
955862146
1027085389
111431a721
1290a24b9
1357c4476
143850aa9
1525a0479
hex19d4a4d

27085389 has 8 divisors (see below), whose sum is σ = 36137952. Its totient is φ = 18044880.

The previous prime is 27085381. The next prime is 27085411. The reversal of 27085389 is 98358072.

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

It is not a de Polignac number, because 27085389 - 23 = 27085381 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 27085389.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27085381) 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, 6799 + ... + 10019.

It is an arithmetic number, because the mean of its divisors is an integer number (4517244).

Almost surely, 227085389 is an apocalyptic number.

It is an amenable number.

27085389 is a deficient number, since it is larger than the sum of its proper divisors (9052563).

27085389 is a wasteful number, since it uses less digits than its factorization.

27085389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6027.

The product of its (nonzero) digits is 120960, while the sum is 42.

The square root of 27085389 is about 5204.3624969827. The cubic root of 27085389 is about 300.3159227482.

The spelling of 27085389 in words is "twenty-seven million, eighty-five thousand, three hundred eighty-nine".

Divisors: 1 3 2803 3221 8409 9663 9028463 27085389