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28086063 = 39362021
BaseRepresentation
bin110101100100…
…0111100101111
31221211220211120
41223020330233
524142223223
62441552023
7460504365
oct153107457
957756746
1028086063
1114943525
1294a5613
135a84a95
143a31635
1526ebbe3
hex1ac8f2f

28086063 has 4 divisors (see below), whose sum is σ = 37448088. Its totient is φ = 18724040.

The previous prime is 28086061. The next prime is 28086067. The reversal of 28086063 is 36068082.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 28086063 - 21 = 28086061 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28086061) 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, 4681008 + ... + 4681013.

It is an arithmetic number, because the mean of its divisors is an integer number (9362022).

Almost surely, 228086063 is an apocalyptic number.

28086063 is a deficient number, since it is larger than the sum of its proper divisors (9362025).

28086063 is an equidigital number, since it uses as much as digits as its factorization.

28086063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9362024.

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 28086063 is about 5299.6285718907. The cubic root of 28086063 is about 303.9696955884.

The spelling of 28086063 in words is "twenty-eight million, eighty-six thousand, sixty-three".

Divisors: 1 3 9362021 28086063