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28038652 = 227009663
BaseRepresentation
bin110101011110…
…1010111111100
31221202111210121
41222331113330
524134214102
62440544324
7460216225
oct152752774
957674717
1028038652
1114910944
1294820a4
135a69325
143a1c24c
1526dcb37
hex1abd5fc

28038652 has 6 divisors (see below), whose sum is σ = 49067648. Its totient is φ = 14019324.

The previous prime is 28038611. The next prime is 28038653. The reversal of 28038652 is 25683082.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28038653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3504828 + ... + 3504835.

Almost surely, 228038652 is an apocalyptic number.

It is an amenable number.

28038652 is a deficient number, since it is larger than the sum of its proper divisors (21028996).

28038652 is a wasteful number, since it uses less digits than its factorization.

28038652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7009667 (or 7009665 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 34.

The square root of 28038652 is about 5295.1536332764. The cubic root of 28038652 is about 303.7985594152.

The spelling of 28038652 in words is "twenty-eight million, thirty-eight thousand, six hundred fifty-two".

Divisors: 1 2 4 7009663 14019326 28038652