Search a number
-
+
28683104 = 25896347
BaseRepresentation
bin110110101101…
…0101101100000
31222222020211012
41231122231200
524320324404
62502440052
7465542132
oct155325540
958866735
1028683104
111521104a
129733028
135c33768
143b49052
1527b8a6e
hex1b5ab60

28683104 has 12 divisors (see below), whose sum is σ = 56469924. Its totient is φ = 14341536.

The previous prime is 28683101. The next prime is 28683119. The reversal of 28683104 is 40138682.

It is a Harshad number since it is a multiple of its sum of digits (32), and also a Moran number because the ratio is a prime number: 896347 = 28683104 / (2 + 8 + 6 + 8 + 3 + 1 + 0 + 4).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28683101) 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 as a sum of consecutive naturals, namely, 448142 + ... + 448205.

It is an arithmetic number, because the mean of its divisors is an integer number (4705827).

Almost surely, 228683104 is an apocalyptic number.

It is an amenable number.

28683104 is a deficient number, since it is larger than the sum of its proper divisors (27786820).

28683104 is an equidigital number, since it uses as much as digits as its factorization.

28683104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 896357 (or 896349 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 32.

The square root of 28683104 is about 5355.6609302681. The cubic root of 28683104 is about 306.1084952822.

The spelling of 28683104 in words is "twenty-eight million, six hundred eighty-three thousand, one hundred four".

Divisors: 1 2 4 8 16 32 896347 1792694 3585388 7170776 14341552 28683104