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27938046 = 2343108287
BaseRepresentation
bin110101010010…
…0110011111110
31221120101210110
41222210303332
524123004141
62434450450
7456320013
oct152446376
957511713
1027938046
11148522a4
129433a26
135a325b6
1439d370a
1526bce16
hex1aa4cfe

27938046 has 16 divisors (see below), whose sum is σ = 57176064. Its totient is φ = 9096024.

The previous prime is 27938041. The next prime is 27938047. The reversal of 27938046 is 64083972.

It is a junction number, because it is equal to n+sod(n) for n = 27937995 and 27938013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27938041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53886 + ... + 54401.

It is an arithmetic number, because the mean of its divisors is an integer number (3573504).

Almost surely, 227938046 is an apocalyptic number.

27938046 is an abundant number, since it is smaller than the sum of its proper divisors (29238018).

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

27938046 is a wasteful number, since it uses less digits than its factorization.

27938046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108335.

The product of its (nonzero) digits is 72576, while the sum is 39.

The square root of 27938046 is about 5285.6452775418. The cubic root of 27938046 is about 303.4347689043.

The spelling of 27938046 in words is "twenty-seven million, nine hundred thirty-eight thousand, forty-six".

Divisors: 1 2 3 6 43 86 129 258 108287 216574 324861 649722 4656341 9312682 13969023 27938046