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2213444103205 = 561173103340609
BaseRepresentation
bin100000001101011011100…
…011001010110000100101
321211121021201120201222211
4200031123203022300211
5242231113142300310
64412501524523421
7315626131306156
oct40153343126045
97747251521884
102213444103205
11783797545785
122b8b91b50571
1313095ac68baa
14791ba2a192d
153c89b879c8a
hex2035b8cac25

2213444103205 has 32 divisors (see below), whose sum is σ = 2717976618720. Its totient is φ = 1729939783680.

The previous prime is 2213444103203. The next prime is 2213444103419. The reversal of 2213444103205 is 5023014443122.

It can be written as a sum of positive squares in 16 ways, for example, as 307271771041 + 1906172332164 = 554321^2 + 1380642^2 .

It is not a de Polignac number, because 2213444103205 - 21 = 2213444103203 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2213444103203) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 54485941 + ... + 54526549.

It is an arithmetic number, because the mean of its divisors is an integer number (84936769335).

Almost surely, 22213444103205 is an apocalyptic number.

It is an amenable number.

2213444103205 is a deficient number, since it is larger than the sum of its proper divisors (504532515515).

2213444103205 is a wasteful number, since it uses less digits than its factorization.

2213444103205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41881.

The product of its (nonzero) digits is 23040, while the sum is 31.

Adding to 2213444103205 its reverse (5023014443122), we get a palindrome (7236458546327).

The spelling of 2213444103205 in words is "two trillion, two hundred thirteen billion, four hundred forty-four million, one hundred three thousand, two hundred five".

Divisors: 1 5 61 173 305 865 1033 5165 10553 40609 52765 63013 178709 203045 315065 893545 2477149 7025357 10901249 12385745 35126785 41949097 54506245 209745485 428546777 2142733885 2558894917 7257193781 12794474585 36285968905 442688820641 2213444103205