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2745228 = 2231713457
BaseRepresentation
bin1010011110001110001100
312011110202010
422132032030
51200321403
6134501220
732222403
oct12361614
95143663
102745228
111605592
12b04810
137516c5
1451663a
15393603
hex29e38c

2745228 has 24 divisors (see below), whose sum is σ = 6782832. Its totient is φ = 861184.

The previous prime is 2745209. The next prime is 2745229. The reversal of 2745228 is 8225472.

2745228 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 2745195 and 2745204.

It is not an unprimeable number, because it can be changed into a prime (2745229) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 6525 + ... + 6932.

It is an arithmetic number, because the mean of its divisors is an integer number (282618).

22745228 is an apocalyptic number.

It is an amenable number.

2745228 is an abundant number, since it is smaller than the sum of its proper divisors (4037604).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2745228 is a wasteful number, since it uses less digits than its factorization.

2745228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13481 (or 13479 counting only the distinct ones).

The product of its digits is 8960, while the sum is 30.

The square root of 2745228 is about 1656.8729583164. The cubic root of 2745228 is about 140.0208812391.

The spelling of 2745228 in words is "two million, seven hundred forty-five thousand, two hundred twenty-eight".

Divisors: 1 2 3 4 6 12 17 34 51 68 102 204 13457 26914 40371 53828 80742 161484 228769 457538 686307 915076 1372614 2745228