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27085247 = 73869321
BaseRepresentation
bin110011101010…
…0100110111111
31212222001222022
41213110212333
523413211442
62404310355
7446135510
oct147244677
955861868
1027085247
111431a602
1290a23bb
1357c4397
143850a07
1525a03d2
hex19d49bf

27085247 has 4 divisors (see below), whose sum is σ = 30954576. Its totient is φ = 23215920.

The previous prime is 27085211. The next prime is 27085259. The reversal of 27085247 is 74258072.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 27085247 - 28 = 27084991 is a prime.

It is a super-2 number, since 2×270852472 = 1467221210102018, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27085277) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1934654 + ... + 1934667.

It is an arithmetic number, because the mean of its divisors is an integer number (7738644).

Almost surely, 227085247 is an apocalyptic number.

27085247 is a deficient number, since it is larger than the sum of its proper divisors (3869329).

27085247 is an equidigital number, since it uses as much as digits as its factorization.

27085247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3869328.

The product of its (nonzero) digits is 31360, while the sum is 35.

The square root of 27085247 is about 5204.3488545638. The cubic root of 27085247 is about 300.3153979273.

The spelling of 27085247 in words is "twenty-seven million, eighty-five thousand, two hundred forty-seven".

Divisors: 1 7 3869321 27085247