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27814940 = 2251738039
BaseRepresentation
bin110101000011…
…0110000011100
31221100010220222
41222012300130
524110034230
62432100512
7455265056
oct152066034
957303828
1027814940
111477885a
129394738
1359bb55a
1439a08d6
1526966e5
hex1a86c1c

27814940 has 24 divisors (see below), whose sum is σ = 58756320. Its totient is φ = 11060288.

The previous prime is 27814939. The next prime is 27814999. The reversal of 27814940 is 4941872.

It is a self number, because there is not a number n which added to its sum of digits gives 27814940.

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 7 ways as a sum of consecutive naturals, for example, 560 + ... + 7479.

It is an arithmetic number, because the mean of its divisors is an integer number (2448180).

Almost surely, 227814940 is an apocalyptic number.

27814940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27814940 is an abundant number, since it is smaller than the sum of its proper divisors (30941380).

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

27814940 is a wasteful number, since it uses less digits than its factorization.

27814940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8221 (or 8219 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 35.

The square root of 27814940 is about 5273.9871065447. The cubic root of 27814940 is about 302.9884284340.

The spelling of 27814940 in words is "twenty-seven million, eight hundred fourteen thousand, nine hundred forty".

Divisors: 1 2 4 5 10 20 173 346 692 865 1730 3460 8039 16078 32156 40195 80390 160780 1390747 2781494 5562988 6953735 13907470 27814940