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27086949 = 3223312917
BaseRepresentation
bin110011101010…
…1000001100101
31212222011022100
41213111001211
523413240244
62404322313
7446143461
oct147250145
955864270
1027086949
111432090a
1290a3399
1357c50a6
1438514a1
1525a0b69
hex19d5065

27086949 has 12 divisors (see below), whose sum is σ = 39296556. Its totient is φ = 17979072.

The previous prime is 27086929. The next prime is 27087007. The reversal of 27086949 is 94968072.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 9922500 + 17164449 = 3150^2 + 4143^2 .

It is not a de Polignac number, because 27086949 - 211 = 27084901 is a prime.

It is a super-2 number, since 2×270869492 = 1467405612257202, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27086929) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4362 + ... + 8555.

It is an arithmetic number, because the mean of its divisors is an integer number (3274713).

Almost surely, 227086949 is an apocalyptic number.

It is an amenable number.

27086949 is a deficient number, since it is larger than the sum of its proper divisors (12209607).

27086949 is a wasteful number, since it uses less digits than its factorization.

27086949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13156 (or 13153 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The square root of 27086949 is about 5204.5123690890. The cubic root of 27086949 is about 300.3216882656.

The spelling of 27086949 in words is "twenty-seven million, eighty-six thousand, nine hundred forty-nine".

Divisors: 1 3 9 233 699 2097 12917 38751 116253 3009661 9028983 27086949