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27338420 = 2251366921
BaseRepresentation
bin110100001001…
…0011010110100
31220102221021002
41220102122310
523444312140
62413542432
7451241564
oct150223264
956387232
1027338420
111448283a
1291a4a18
1358826a5
1438b8da4
152600415
hex1a126b4

27338420 has 12 divisors (see below), whose sum is σ = 57410724. Its totient is φ = 10935360.

The previous prime is 27338413. The next prime is 27338447. The reversal of 27338420 is 2483372.

It can be written as a sum of positive squares in 2 ways, for example, as 4048144 + 23290276 = 2012^2 + 4826^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 683441 + ... + 683480.

It is an arithmetic number, because the mean of its divisors is an integer number (4784227).

Almost surely, 227338420 is an apocalyptic number.

27338420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27338420 is an abundant number, since it is smaller than the sum of its proper divisors (30072304).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

27338420 is a wasteful number, since it uses less digits than its factorization.

27338420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1366930 (or 1366928 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 29.

The square root of 27338420 is about 5228.6154955208. The cubic root of 27338420 is about 301.2482068039.

The spelling of 27338420 in words is "twenty-seven million, three hundred thirty-eight thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 1366921 2733842 5467684 6834605 13669210 27338420