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2272888 = 23284111
BaseRepresentation
bin1000101010111001111000
311021110211001
420222321320
51040213023
6120414344
725214332
oct10527170
94243731
102272888
111312722
129173b4
13617707
14432452
152ed6ad
hex22ae78

2272888 has 8 divisors (see below), whose sum is σ = 4261680. Its totient is φ = 1136440.

The previous prime is 2272861. The next prime is 2272903. The reversal of 2272888 is 8882722.

2272888 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (8).

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 as a sum of consecutive naturals, namely, 142048 + ... + 142063.

It is an arithmetic number, because the mean of its divisors is an integer number (532710).

22272888 is an apocalyptic number.

It is an amenable number.

2272888 is a deficient number, since it is larger than the sum of its proper divisors (1988792).

2272888 is a wasteful number, since it uses less digits than its factorization.

2272888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284117 (or 284113 counting only the distinct ones).

The product of its digits is 28672, while the sum is 37.

The square root of 2272888 is about 1507.6100291521. The cubic root of 2272888 is about 131.4798939897.

It can be divided in two parts, 2272 and 888, that added together give a triangular number (3160 = T79).

The spelling of 2272888 in words is "two million, two hundred seventy-two thousand, eight hundred eighty-eight".

Divisors: 1 2 4 8 284111 568222 1136444 2272888