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27084985 = 529186793
BaseRepresentation
bin110011101010…
…0100010111001
31212222001121121
41213110202321
523413204420
62404305241
7446134654
oct147244271
955861547
1027084985
111431a394
1290a2221
1357c4225
14385089b
1525a02aa
hex19d48b9

27084985 has 8 divisors (see below), whose sum is σ = 33622920. Its totient is φ = 20920704.

The previous prime is 27084977. The next prime is 27084989. The reversal of 27084985 is 58948072.

It can be written as a sum of positive squares in 4 ways, for example, as 11148921 + 15936064 = 3339^2 + 3992^2 .

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 27084985 - 23 = 27084977 is a prime.

It is not an unprimeable number, because it can be changed into a prime (27084989) 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, 93252 + ... + 93541.

It is an arithmetic number, because the mean of its divisors is an integer number (4202865).

Almost surely, 227084985 is an apocalyptic number.

It is an amenable number.

27084985 is a deficient number, since it is larger than the sum of its proper divisors (6537935).

27084985 is a wasteful number, since it uses less digits than its factorization.

27084985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186827.

The product of its (nonzero) digits is 161280, while the sum is 43.

The square root of 27084985 is about 5204.3236832465. The cubic root of 27084985 is about 300.3144295909.

The spelling of 27084985 in words is "twenty-seven million, eighty-four thousand, nine hundred eighty-five".

Divisors: 1 5 29 145 186793 933965 5416997 27084985