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2201105 = 5440221
BaseRepresentation
bin1000011001011000010001
311010211100102
420121120101
51030413410
6115102145
724465134
oct10313021
94124312
102201105
1112737a5
128a1955
135c0b3a
1441421b
152d72a5
hex219611

2201105 has 4 divisors (see below), whose sum is σ = 2641332. Its totient is φ = 1760880.

The previous prime is 2201099. The next prime is 2201107. The reversal of 2201105 is 5011022.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 919681 + 1281424 = 959^2 + 1132^2 .

It is a de Polignac number, because none of the positive numbers 2k-2201105 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2201107) 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, 220106 + ... + 220115.

It is an arithmetic number, because the mean of its divisors is an integer number (660333).

22201105 is an apocalyptic number.

It is an amenable number.

2201105 is a deficient number, since it is larger than the sum of its proper divisors (440227).

2201105 is an equidigital number, since it uses as much as digits as its factorization.

2201105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 440226.

The product of its (nonzero) digits is 20, while the sum is 11.

The square root of 2201105 is about 1483.6121460813. The cubic root of 2201105 is about 130.0809160943.

Adding to 2201105 its reverse (5011022), we get a palindrome (7212127).

The spelling of 2201105 in words is "two million, two hundred one thousand, one hundred five".

Divisors: 1 5 440221 2201105