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2228887 = 17131111
BaseRepresentation
bin1000100000001010010111
311012020110101
420200022113
51032311022
6115434531
724642133
oct10401227
94166411
102228887
111292661
128b5a47
1360068b
144203c3
152e0627
hex220297

2228887 has 4 divisors (see below), whose sum is σ = 2360016. Its totient is φ = 2097760.

The previous prime is 2228867. The next prime is 2228893. The reversal of 2228887 is 7888222.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2228887 - 211 = 2226839 is a prime.

It is a d-powerful number, because it can be written as 27 + 217 + 221 + 82 + 82 + 82 + 73 .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2228867) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65539 + ... + 65572.

It is an arithmetic number, because the mean of its divisors is an integer number (590004).

22228887 is an apocalyptic number.

2228887 is a deficient number, since it is larger than the sum of its proper divisors (131129).

2228887 is a wasteful number, since it uses less digits than its factorization.

2228887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131128.

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

The square root of 2228887 is about 1492.9457458327. The cubic root of 2228887 is about 130.6259164485.

The spelling of 2228887 in words is "two million, two hundred twenty-eight thousand, eight hundred eighty-seven".

Divisors: 1 17 131111 2228887