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27838148 = 2213535349
BaseRepresentation
bin110101000110…
…0011011000100
31221101022202112
41222030123010
524111310043
62432400152
7455422532
oct152143304
957338675
1027838148
1114794238
1293a6058
1359c8ca0
1439a9152
15269d518
hex1a8c6c4

27838148 has 12 divisors (see below), whose sum is σ = 52464300. Its totient is φ = 12848352.

The previous prime is 27838133. The next prime is 27838189. The reversal of 27838148 is 84183872.

It can be written as a sum of positive squares in 2 ways, for example, as 9193024 + 18645124 = 3032^2 + 4318^2 .

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, 267623 + ... + 267726.

It is an arithmetic number, because the mean of its divisors is an integer number (4372025).

Almost surely, 227838148 is an apocalyptic number.

It is an amenable number.

27838148 is a deficient number, since it is larger than the sum of its proper divisors (24626152).

27838148 is a wasteful number, since it uses less digits than its factorization.

27838148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 535366 (or 535364 counting only the distinct ones).

The product of its digits is 86016, while the sum is 41.

The square root of 27838148 is about 5276.1868806933. The cubic root of 27838148 is about 303.0726733356.

The spelling of 27838148 in words is "twenty-seven million, eight hundred thirty-eight thousand, one hundred forty-eight".

Divisors: 1 2 4 13 26 52 535349 1070698 2141396 6959537 13919074 27838148