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27057189 = 353379449
BaseRepresentation
bin110011100110…
…1110000100101
31212220122111010
41213031300211
523411312224
62403532433
7445660635
oct147156045
955818433
1027057189
1114300515
12908a119
1357b4693
1438446c5
152596e29
hex19cdc25

27057189 has 16 divisors (see below), whose sum is σ = 36936000. Its totient is φ = 17611776.

The previous prime is 27057181. The next prime is 27057211. The reversal of 27057189 is 98175072.

It is not a de Polignac number, because 27057189 - 23 = 27057181 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27057181) 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 15 ways as a sum of consecutive naturals, for example, 60037 + ... + 60485.

It is an arithmetic number, because the mean of its divisors is an integer number (2308500).

Almost surely, 227057189 is an apocalyptic number.

It is an amenable number.

27057189 is a deficient number, since it is larger than the sum of its proper divisors (9878811).

27057189 is a wasteful number, since it uses less digits than its factorization.

27057189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 884.

The product of its (nonzero) digits is 35280, while the sum is 39.

The square root of 27057189 is about 5201.6525258806. The cubic root of 27057189 is about 300.2116617403.

The spelling of 27057189 in words is "twenty-seven million, fifty-seven thousand, one hundred eighty-nine".

Divisors: 1 3 53 159 379 449 1137 1347 20087 23797 60261 71391 170171 510513 9019063 27057189