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27311693 = 139349563
BaseRepresentation
bin110100000101…
…1111001001101
31220101120121012
41220023321031
523442433233
62413215005
7451100633
oct150137115
956346535
1027311693
1114464752
129191465
135873486
1438ad353
1525e7548
hex1a0be4d

27311693 has 8 divisors (see below), whose sum is σ = 27636000. Its totient is φ = 26989488.

The previous prime is 27311689. The next prime is 27311701. The reversal of 27311693 is 39611372.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 27311693 - 22 = 27311689 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27311593) 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 7 ways as a sum of consecutive naturals, for example, 48230 + ... + 48792.

It is an arithmetic number, because the mean of its divisors is an integer number (3454500).

Almost surely, 227311693 is an apocalyptic number.

It is an amenable number.

27311693 is a deficient number, since it is larger than the sum of its proper divisors (324307).

27311693 is a wasteful number, since it uses less digits than its factorization.

27311693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1051.

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

The square root of 27311693 is about 5226.0590314309. The cubic root of 27311693 is about 301.1500045176.

The spelling of 27311693 in words is "twenty-seven million, three hundred eleven thousand, six hundred ninety-three".

Divisors: 1 139 349 563 48511 78257 196487 27311693