Search a number
-
+
28074608 = 246726189
BaseRepresentation
bin110101100011…
…0001001110000
31221211100010022
41223012021300
524141341413
62441423012
7460426112
oct153061160
957740108
1028074608
1114935961
12949aa68
135a7c7c3
143a2b3b2
1526e8608
hex1ac6270

28074608 has 20 divisors (see below), whose sum is σ = 55208520. Its totient is φ = 13827264.

The previous prime is 28074593. The next prime is 28074611. The reversal of 28074608 is 80647082.

It is a super-2 number, since 2×280746082 = 1576367228707328, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12023 + ... + 14166.

It is an arithmetic number, because the mean of its divisors is an integer number (2760426).

Almost surely, 228074608 is an apocalyptic number.

It is an amenable number.

28074608 is a deficient number, since it is larger than the sum of its proper divisors (27133912).

28074608 is a wasteful number, since it uses less digits than its factorization.

28074608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26264 (or 26258 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 35.

The square root of 28074608 is about 5298.5477255565. The cubic root of 28074608 is about 303.9283649309.

It can be divided in two parts, 28074 and 608, that added together give a palindrome (28682).

The spelling of 28074608 in words is "twenty-eight million, seventy-four thousand, six hundred eight".

Divisors: 1 2 4 8 16 67 134 268 536 1072 26189 52378 104756 209512 419024 1754663 3509326 7018652 14037304 28074608