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2227205 = 523107181
BaseRepresentation
bin1000011111110000000101
311012011011002
420133300011
51032232310
6115423045
724634211
oct10376005
94164132
102227205
111291372
128b4a85
135cc996
1441d941
152deda5
hex21fc05

2227205 has 16 divisors (see below), whose sum is σ = 2830464. Its totient is φ = 1679040.

The previous prime is 2227201. The next prime is 2227207. The reversal of 2227205 is 5027222.

It is not a de Polignac number, because 2227205 - 22 = 2227201 is a prime.

It is a super-2 number, since 2×22272052 = 9920884224050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2227201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12215 + ... + 12395.

It is an arithmetic number, because the mean of its divisors is an integer number (176904).

22227205 is an apocalyptic number.

It is an amenable number.

2227205 is a deficient number, since it is larger than the sum of its proper divisors (603259).

2227205 is a wasteful number, since it uses less digits than its factorization.

2227205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316.

The product of its (nonzero) digits is 560, while the sum is 20.

The square root of 2227205 is about 1492.3823236691. The cubic root of 2227205 is about 130.5930498081.

The spelling of 2227205 in words is "two million, two hundred twenty-seven thousand, two hundred five".

Divisors: 1 5 23 107 115 181 535 905 2461 4163 12305 19367 20815 96835 445441 2227205