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27082005 = 353075881
BaseRepresentation
bin110011101001…
…1110100010101
31212221220112020
41213103310111
523413111010
62404243353
7446123166
oct147236425
955856466
1027082005
1114318125
1290a0559
1357c2a72
14384d76d
15259e470
hex19d3d15

27082005 has 16 divisors (see below), whose sum is σ = 43479744. Its totient is φ = 14394240.

The previous prime is 27081997. The next prime is 27082007. The reversal of 27082005 is 50028072.

It is not a de Polignac number, because 27082005 - 23 = 27081997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27082007) 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, 1665 + ... + 7545.

It is an arithmetic number, because the mean of its divisors is an integer number (2717484).

Almost surely, 227082005 is an apocalyptic number.

It is an amenable number.

27082005 is a deficient number, since it is larger than the sum of its proper divisors (16397739).

27082005 is a wasteful number, since it uses less digits than its factorization.

27082005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6196.

The product of its (nonzero) digits is 1120, while the sum is 24.

The square root of 27082005 is about 5204.0373749619. The cubic root of 27082005 is about 300.3034152494.

The spelling of 27082005 in words is "twenty-seven million, eighty-two thousand, five".

Divisors: 1 3 5 15 307 921 1535 4605 5881 17643 29405 88215 1805467 5416401 9027335 27082005