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2213188 = 221075171
BaseRepresentation
bin1000011100010101000100
311011102220221
420130111010
51031310223
6115234124
724545305
oct10342504
94142827
102213188
11128188a
128a8944
135c64a3
144187ac
152dab5d
hex21c544

2213188 has 12 divisors (see below), whose sum is σ = 3910032. Its totient is φ = 1096040.

The previous prime is 2213171. The next prime is 2213191. The reversal of 2213188 is 8813122.

It is a super-2 number, since 2×22131882 = 9796402246688, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2158 + ... + 3013.

It is an arithmetic number, because the mean of its divisors is an integer number (325836).

22213188 is an apocalyptic number.

It is an amenable number.

2213188 is a deficient number, since it is larger than the sum of its proper divisors (1696844).

2213188 is a wasteful number, since it uses less digits than its factorization.

2213188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5282 (or 5280 counting only the distinct ones).

The product of its digits is 768, while the sum is 25.

The square root of 2213188 is about 1487.6787287583. The cubic root of 2213188 is about 130.3185089347.

It can be divided in two parts, 2213 and 188, that added together give a 4-th power (2401 = 74).

The spelling of 2213188 in words is "two million, two hundred thirteen thousand, one hundred eighty-eight".

Divisors: 1 2 4 107 214 428 5171 10342 20684 553297 1106594 2213188