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28766083 = 44964067
BaseRepresentation
bin110110110111…
…0111110000011
32000010110122111
41231232332003
524331003313
62504320151
7466336063
oct155567603
960113574
1028766083
1115268425
129773057
135c62468
143b6b3a3
1527d343d
hex1b6ef83

28766083 has 4 divisors (see below), whose sum is σ = 28830600. Its totient is φ = 28701568.

The previous prime is 28766069. The next prime is 28766093. The reversal of 28766083 is 38066782.

It is a happy number.

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 28766083 - 217 = 28635011 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28766063) 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, 31585 + ... + 32482.

It is an arithmetic number, because the mean of its divisors is an integer number (7207650).

Almost surely, 228766083 is an apocalyptic number.

28766083 is a deficient number, since it is larger than the sum of its proper divisors (64517).

28766083 is an equidigital number, since it uses as much as digits as its factorization.

28766083 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64516.

The product of its (nonzero) digits is 96768, while the sum is 40.

The square root of 28766083 is about 5363.4021851806. The cubic root of 28766083 is about 306.4033973711.

The spelling of 28766083 in words is "twenty-eight million, seven hundred sixty-six thousand, eighty-three".

Divisors: 1 449 64067 28766083