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2216190 = 235312383
BaseRepresentation
bin1000011101000011111110
311011121001010
420131003332
51031404230
6115300050
724560124
oct10350376
94147033
102216190
111284069
128aa626
135c7972
14419914
152db9b0
hex21d0fe

2216190 has 32 divisors (see below), whose sum is σ = 5492736. Its totient is φ = 571680.

The previous prime is 2216167. The next prime is 2216197. The reversal of 2216190 is 916122.

2216190 is nontrivially palindromic in base 14.

It is a super-2 number, since 2×22161902 = 9822996232200, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2216197) 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, 262 + ... + 2121.

It is an arithmetic number, because the mean of its divisors is an integer number (171648).

22216190 is an apocalyptic number.

2216190 is an abundant number, since it is smaller than the sum of its proper divisors (3276546).

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

2216190 is a wasteful number, since it uses less digits than its factorization.

2216190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2424.

The product of its (nonzero) digits is 216, while the sum is 21.

The square root of 2216190 is about 1488.6873412507. The cubic root of 2216190 is about 130.3774042799.

The spelling of 2216190 in words is "two million, two hundred sixteen thousand, one hundred ninety".

Divisors: 1 2 3 5 6 10 15 30 31 62 93 155 186 310 465 930 2383 4766 7149 11915 14298 23830 35745 71490 73873 147746 221619 369365 443238 738730 1108095 2216190