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27313169 = 1317731693
BaseRepresentation
bin110100000110…
…0010000010001
31220101122121212
41220030100101
523443010134
62413225505
7451105142
oct150142021
956348555
1027313169
1114465874
129192295
135874050
1438adac9
1525e7bce
hex1a0c411

27313169 has 16 divisors (see below), whose sum is σ = 31589712. Its totient is φ = 23390208.

The previous prime is 27313151. The next prime is 27313171. The reversal of 27313169 is 96131372.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 148225 + 27164944 = 385^2 + 5212^2 .

It is a cyclic number.

It is not a de Polignac number, because 27313169 - 28 = 27312913 is a prime.

It is a super-2 number, since 2×273131692 = 1492018401645122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27313129) 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, 15287 + ... + 16979.

It is an arithmetic number, because the mean of its divisors is an integer number (1974357).

Almost surely, 227313169 is an apocalyptic number.

It is an amenable number.

27313169 is a deficient number, since it is larger than the sum of its proper divisors (4276543).

27313169 is a wasteful number, since it uses less digits than its factorization.

27313169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1796.

The product of its digits is 6804, while the sum is 32.

The square root of 27313169 is about 5226.2002449198. The cubic root of 27313169 is about 301.1554294150.

The spelling of 27313169 in words is "twenty-seven million, three hundred thirteen thousand, one hundred sixty-nine".

Divisors: 1 13 17 73 221 949 1241 1693 16133 22009 28781 123589 374153 1606657 2101013 27313169