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2201322213 = 32244591357
BaseRepresentation
bin1000001100110101…
…1000001011100101
312200102011202101100
42003031120023211
514002014302323
61002233550313
7105356634006
oct20315301345
95612152340
102201322213
11a2a652a62
12515275399
132910a542c
1416c5031ad
15cd3cd943
hex833582e5

2201322213 has 6 divisors (see below), whose sum is σ = 3179687654. Its totient is φ = 1467548136.

The previous prime is 2201322199. The next prime is 2201322217. The reversal of 2201322213 is 3122231022.

It can be written as a sum of positive squares in only one way, i.e., 1115092449 + 1086229764 = 33393^2 + 32958^2 .

It is not a de Polignac number, because 2201322213 - 210 = 2201321189 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 (2201322217) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 122295670 + ... + 122295687.

Almost surely, 22201322213 is an apocalyptic number.

It is an amenable number.

2201322213 is a deficient number, since it is larger than the sum of its proper divisors (978365441).

2201322213 is a wasteful number, since it uses less digits than its factorization.

2201322213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244591363 (or 244591360 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 2201322213 is about 46918.2503190390. The cubic root of 2201322213 is about 1300.8519490522.

Adding to 2201322213 its reverse (3122231022), we get a palindrome (5323553235).

The spelling of 2201322213 in words is "two billion, two hundred one million, three hundred twenty-two thousand, two hundred thirteen".

Divisors: 1 3 9 244591357 733774071 2201322213