Search a number
-
+
28633682 = 2711216903
BaseRepresentation
bin110110100111…
…0101001010010
31222212202000202
41231032221102
524312234212
62501415202
7465245060
oct155165122
958782022
1028633682
1115187a00
12970a502
135c1710c
143b35030
1527a90c2
hex1b4ea52

28633682 has 24 divisors (see below), whose sum is σ = 53957568. Its totient is φ = 11155320.

The previous prime is 28633679. The next prime is 28633687.

It is a happy number.

28633682 is nontrivially palindromic in base 10.

It is not an unprimeable number, because it can be changed into a prime (28633687) 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 11 ways as a sum of consecutive naturals, for example, 6758 + ... + 10145.

It is an arithmetic number, because the mean of its divisors is an integer number (2248232).

Almost surely, 228633682 is an apocalyptic number.

28633682 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

28633682 is a deficient number, since it is larger than the sum of its proper divisors (25323886).

28633682 is a wasteful number, since it uses less digits than its factorization.

28633682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16934 (or 16923 counting only the distinct ones).

The product of its digits is 82944, while the sum is 38.

The square root of 28633682 is about 5351.0449446814. The cubic root of 28633682 is about 305.9325822969.

The spelling of 28633682 in words is "twenty-eight million, six hundred thirty-three thousand, six hundred eighty-two".

Divisors: 1 2 7 11 14 22 77 121 154 242 847 1694 16903 33806 118321 185933 236642 371866 1301531 2045263 2603062 4090526 14316841 28633682