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2228208 = 24361761
BaseRepresentation
bin1000011111111111110000
311012012112020
420133333300
51032300313
6115431440
724640143
oct10377760
94165466
102228208
1112920a4
128b5580
13600288
1442005a
152e0323
hex21fff0

2228208 has 40 divisors (see below), whose sum is σ = 5858256. Its totient is φ = 729600.

The previous prime is 2228201. The next prime is 2228209. The reversal of 2228208 is 8028222.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2228201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2548 + ... + 3308.

22228208 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 2228208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2929128).

2228208 is an abundant number, since it is smaller than the sum of its proper divisors (3630048).

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

2228208 is a wasteful number, since it uses less digits than its factorization.

2228208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 833 (or 827 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 24.

The square root of 2228208 is about 1492.7183257400. The cubic root of 2228208 is about 130.6126506338.

The spelling of 2228208 in words is "two million, two hundred twenty-eight thousand, two hundred eight".

Divisors: 1 2 3 4 6 8 12 16 24 48 61 122 183 244 366 488 732 761 976 1464 1522 2283 2928 3044 4566 6088 9132 12176 18264 36528 46421 92842 139263 185684 278526 371368 557052 742736 1114104 2228208