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2222748 = 2233111871
BaseRepresentation
bin1000011110101010011100
311011221001000
420132222130
51032111443
6115350300
724615213
oct10365234
94157030
102222748
111288a90
128b2390
135ca948
1441c07a
152dd8d3
hex21ea9c

2222748 has 48 divisors (see below), whose sum is σ = 6289920. Its totient is φ = 673200.

The previous prime is 2222741. The next prime is 2222761. The reversal of 2222748 is 8472222.

2222748 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2222741) 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 15 ways as a sum of consecutive naturals, for example, 253 + ... + 2123.

It is an arithmetic number, because the mean of its divisors is an integer number (131040).

22222748 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2222748, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3144960).

2222748 is an abundant number, since it is smaller than the sum of its proper divisors (4067172).

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

2222748 is a wasteful number, since it uses less digits than its factorization.

2222748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1895 (or 1887 counting only the distinct ones).

The product of its digits is 3584, while the sum is 27.

The square root of 2222748 is about 1490.8883257977. Note that the first 3 decimals coincide. The cubic root of 2222748 is about 130.5058789794.

The spelling of 2222748 in words is "two million, two hundred twenty-two thousand, seven hundred forty-eight".

Divisors: 1 2 3 4 6 9 11 12 18 22 27 33 36 44 54 66 99 108 132 198 297 396 594 1188 1871 3742 5613 7484 11226 16839 20581 22452 33678 41162 50517 61743 67356 82324 101034 123486 185229 202068 246972 370458 555687 740916 1111374 2222748