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2208228 = 2231116729
BaseRepresentation
bin1000011011000111100100
311011012010020
420123013210
51031130403
6115155140
724524661
oct10330744
94135106
102208228
111279090
128a5ab0
135c4159
14416a68
152d9453
hex21b1e4

2208228 has 24 divisors (see below), whose sum is σ = 5621280. Its totient is φ = 669120.

The previous prime is 2208203. The next prime is 2208229. The reversal of 2208228 is 8228022.

It is a junction number, because it is equal to n+sod(n) for n = 2208198 and 2208207.

It is not an unprimeable number, because it can be changed into a prime (2208229) 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, 8233 + ... + 8496.

It is an arithmetic number, because the mean of its divisors is an integer number (234220).

22208228 is an apocalyptic number.

It is an amenable number.

2208228 is an abundant number, since it is smaller than the sum of its proper divisors (3413052).

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

2208228 is a wasteful number, since it uses less digits than its factorization.

2208228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16747 (or 16745 counting only the distinct ones).

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

The square root of 2208228 is about 1486.0107671212. The cubic root of 2208228 is about 130.2210833694.

It can be divided in two parts, 220 and 8228, that added together give a palindrome (8448).

The spelling of 2208228 in words is "two million, two hundred eight thousand, two hundred twenty-eight".

Divisors: 1 2 3 4 6 11 12 22 33 44 66 132 16729 33458 50187 66916 100374 184019 200748 368038 552057 736076 1104114 2208228