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27084005 = 513416677
BaseRepresentation
bin110011101010…
…0010011100101
31212222000021022
41213110103211
523413142010
62404300525
7446132054
oct147242345
955860238
1027084005
1114319683
1290a1745
1357c3950
14385039b
15259ed55
hex19d44e5

27084005 has 8 divisors (see below), whose sum is σ = 35000952. Its totient is φ = 20000448.

The previous prime is 27083989. The next prime is 27084017. The reversal of 27084005 is 50048072.

It can be written as a sum of positive squares in 4 ways, for example, as 879844 + 26204161 = 938^2 + 5119^2 .

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

It is not a de Polignac number, because 27084005 - 24 = 27083989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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, 208274 + ... + 208403.

It is an arithmetic number, because the mean of its divisors is an integer number (4375119).

Almost surely, 227084005 is an apocalyptic number.

It is an amenable number.

27084005 is a deficient number, since it is larger than the sum of its proper divisors (7916947).

27084005 is a wasteful number, since it uses less digits than its factorization.

27084005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 416695.

The product of its (nonzero) digits is 2240, while the sum is 26.

The square root of 27084005 is about 5204.2295299112. The cubic root of 27084005 is about 300.3108075141.

The spelling of 27084005 in words is "twenty-seven million, eighty-four thousand, five".

Divisors: 1 5 13 65 416677 2083385 5416801 27084005