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27036181 is a prime number
BaseRepresentation
bin110011100100…
…0101000010101
31212212120200001
41213020220111
523410124211
62403251301
7445542454
oct147105025
955776601
1027036181
1114296757
129079b31
1357a7c53
14383ab9b
152590ac1
hex19c8a15

27036181 has 2 divisors, whose sum is σ = 27036182. Its totient is φ = 27036180.

The previous prime is 27036169. The next prime is 27036193. The reversal of 27036181 is 18163072.

It is a balanced prime because it is at equal distance from previous prime (27036169) and next prime (27036193).

It can be written as a sum of positive squares in only one way, i.e., 17056900 + 9979281 = 4130^2 + 3159^2 .

It is a cyclic number.

It is not a de Polignac number, because 27036181 - 213 = 27027989 is a prime.

It is a super-2 number, since 2×270361812 = 1461910166129522, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27036281) by changing a digit.

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 as a sum of consecutive naturals, namely, 13518090 + 13518091.

It is an arithmetic number, because the mean of its divisors is an integer number (13518091).

Almost surely, 227036181 is an apocalyptic number.

It is an amenable number.

27036181 is a deficient number, since it is larger than the sum of its proper divisors (1).

27036181 is an equidigital number, since it uses as much as digits as its factorization.

27036181 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 27036181 is about 5199.6327754948. The cubic root of 27036181 is about 300.1339438916.

The spelling of 27036181 in words is "twenty-seven million, thirty-six thousand, one hundred eighty-one".