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27044985 = 3511163909
BaseRepresentation
bin110011100101…
…0110001111001
31212220000202010
41213022301321
523410414420
62403400133
7445610232
oct147126171
955800663
1027044985
11142a2330
129083049
1357abc66
143840089
1525934e0
hex19cac79

27044985 has 16 divisors (see below), whose sum is σ = 47206080. Its totient is φ = 13112640.

The previous prime is 27044981. The next prime is 27044993. The reversal of 27044985 is 58944072.

It is not a de Polignac number, because 27044985 - 22 = 27044981 is a prime.

It is not an unprimeable number, because it can be changed into a prime (27044981) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 81790 + ... + 82119.

It is an arithmetic number, because the mean of its divisors is an integer number (2950380).

Almost surely, 227044985 is an apocalyptic number.

It is an amenable number.

27044985 is a deficient number, since it is larger than the sum of its proper divisors (20161095).

27044985 is a wasteful number, since it uses less digits than its factorization.

27044985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163928.

The product of its (nonzero) digits is 80640, while the sum is 39.

The square root of 27044985 is about 5200.4793048334. The cubic root of 27044985 is about 300.1665186658.

The spelling of 27044985 in words is "twenty-seven million, forty-four thousand, nine hundred eighty-five".

Divisors: 1 3 5 11 15 33 55 165 163909 491727 819545 1802999 2458635 5408997 9014995 27044985