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27927944 = 2311317363
BaseRepresentation
bin110101010001…
…0010110001000
31221112212221022
41222202112020
524122143234
62434332012
7456245402
oct152422610
957485838
1027927944
1114845750
12942a008
135a2ab15
1439cdb72
1526b9e2e
hex1aa2588

27927944 has 16 divisors (see below), whose sum is σ = 57125520. Its totient is φ = 12694480.

The previous prime is 27927943. The next prime is 27927953. The reversal of 27927944 is 44972972.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a junction number, because it is equal to n+sod(n) for n = 27927895 and 27927904.

It is not an unprimeable number, because it can be changed into a prime (27927943) 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, 158594 + ... + 158769.

It is an arithmetic number, because the mean of its divisors is an integer number (3570345).

Almost surely, 227927944 is an apocalyptic number.

It is an amenable number.

27927944 is an abundant number, since it is smaller than the sum of its proper divisors (29197576).

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

27927944 is a wasteful number, since it uses less digits than its factorization.

27927944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317380 (or 317376 counting only the distinct ones).

The product of its digits is 254016, while the sum is 44.

The square root of 27927944 is about 5284.6895840721. The cubic root of 27927944 is about 303.3981919301.

The spelling of 27927944 in words is "twenty-seven million, nine hundred twenty-seven thousand, nine hundred forty-four".

Divisors: 1 2 4 8 11 22 44 88 317363 634726 1269452 2538904 3490993 6981986 13963972 27927944