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27331045 = 57780887
BaseRepresentation
bin110100001000…
…0100111100101
31220102120010221
41220100213211
523444043140
62413444341
7451211230
oct150204745
956376127
1027331045
1114478245
1291a06b1
13587c221
1438b6417
1525ed14a
hex1a109e5

27331045 has 8 divisors (see below), whose sum is σ = 37482624. Its totient is φ = 18741264.

The previous prime is 27331033. The next prime is 27331067. The reversal of 27331045 is 54013372.

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 27331045 - 211 = 27328997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 390409 + ... + 390478.

It is an arithmetic number, because the mean of its divisors is an integer number (4685328).

Almost surely, 227331045 is an apocalyptic number.

It is an amenable number.

27331045 is a deficient number, since it is larger than the sum of its proper divisors (10151579).

27331045 is an equidigital number, since it uses as much as digits as its factorization.

27331045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 780899.

The product of its (nonzero) digits is 2520, while the sum is 25.

The square root of 27331045 is about 5227.9101943320. The cubic root of 27331045 is about 301.2211154390.

The spelling of 27331045 in words is "twenty-seven million, three hundred thirty-one thousand, forty-five".

Divisors: 1 5 7 35 780887 3904435 5466209 27331045