Search a number
-
+
28083674 = 218777481
BaseRepresentation
bin110101100100…
…0010111011010
31221211210120002
41223020113122
524142134144
62441533002
7460464413
oct153102732
957753502
1028083674
1114941753
1294a4162
135a83978
143a3080a
1526eb14e
hex1ac85da

28083674 has 8 divisors (see below), whose sum is σ = 42153588. Its totient is φ = 14032480.

The previous prime is 28083673. The next prime is 28083697. The reversal of 28083674 is 47638082.

It can be written as a sum of positive squares in 2 ways, for example, as 26081449 + 2002225 = 5107^2 + 1415^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (28083673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14 + ... + 7494.

Almost surely, 228083674 is an apocalyptic number.

28083674 is a deficient number, since it is larger than the sum of its proper divisors (14069914).

28083674 is a wasteful number, since it uses less digits than its factorization.

28083674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9360.

The product of its (nonzero) digits is 64512, while the sum is 38.

The square root of 28083674 is about 5299.4031739433. The cubic root of 28083674 is about 303.9610767918.

The spelling of 28083674 in words is "twenty-eight million, eighty-three thousand, six hundred seventy-four".

Divisors: 1 2 1877 3754 7481 14962 14041837 28083674