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27081313 = 719919441
BaseRepresentation
bin110011101001…
…1101001100001
31212221212120121
41213103221201
523413100223
62404240241
7446121160
oct147235141
955855517
1027081313
1114317656
1290a0081
1357c265c
14384d3d7
15259e15d
hex19d3a61

27081313 has 8 divisors (see below), whose sum is σ = 31107200. Its totient is φ = 23094720.

The previous prime is 27081293. The next prime is 27081319. The reversal of 27081313 is 31318072.

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 27081313 - 217 = 26950241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27081319) 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, 8328 + ... + 11113.

It is an arithmetic number, because the mean of its divisors is an integer number (3888400).

Almost surely, 227081313 is an apocalyptic number.

It is an amenable number.

27081313 is a deficient number, since it is larger than the sum of its proper divisors (4025887).

27081313 is a wasteful number, since it uses less digits than its factorization.

27081313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19647.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 27081313 is about 5203.9708876972. The cubic root of 27081313 is about 300.3008574411.

Adding to 27081313 its reverse (31318072), we get a palindrome (58399385).

The spelling of 27081313 in words is "twenty-seven million, eighty-one thousand, three hundred thirteen".

Divisors: 1 7 199 1393 19441 136087 3868759 27081313