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211042244 = 2277537223
BaseRepresentation
bin11001001010000…
…11111111000100
3112201010001112102
430211003333010
5413011322434
632535211232
75141554340
oct1445037704
9481101472
10211042244
11a9145186
125a816b18
133495238a
1420058620
15137db07e
hexc943fc4

211042244 has 12 divisors (see below), whose sum is σ = 422084544. Its totient is φ = 90446664.

The previous prime is 211042243. The next prime is 211042261. The reversal of 211042244 is 442240112.

211042244 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

211042244 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (211042243) 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, 3768584 + ... + 3768639.

It is an arithmetic number, because the mean of its divisors is an integer number (35173712).

Almost surely, 2211042244 is an apocalyptic number.

It is an amenable number.

211042244 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

211042244 is a wasteful number, since it uses less digits than its factorization.

211042244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7537234 (or 7537232 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 211042244 is about 14527.2930720076. The cubic root of 211042244 is about 595.3739089900.

Adding to 211042244 its reverse (442240112), we get a palindrome (653282356).

The spelling of 211042244 in words is "two hundred eleven million, forty-two thousand, two hundred forty-four".

Divisors: 1 2 4 7 14 28 7537223 15074446 30148892 52760561 105521122 211042244