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2205340660 = 225223494471
BaseRepresentation
bin1000001101110010…
…1101001111110100
312200200201220122201
42003130231033310
514004031400120
61002500034244
7105436041415
oct20334551764
95620656581
102205340660
11a31948096
12516692984
13291b81503
1416cc6b80c
15cd92440a
hex8372d3f4

2205340660 has 24 divisors (see below), whose sum is σ = 4651992576. Its totient is φ = 878178720.

The previous prime is 2205340607. The next prime is 2205340661. The reversal of 2205340660 is 660435022.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2205340661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 242776 + ... + 251695.

It is an arithmetic number, because the mean of its divisors is an integer number (193833024).

Almost surely, 22205340660 is an apocalyptic number.

2205340660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2205340660 is an abundant number, since it is smaller than the sum of its proper divisors (2446651916).

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

2205340660 is a wasteful number, since it uses less digits than its factorization.

2205340660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 494703 (or 494701 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 28.

The square root of 2205340660 is about 46961.0547155832. The cubic root of 2205340660 is about 1301.6430231591.

Adding to 2205340660 its reverse (660435022), we get a palindrome (2865775682).

The spelling of 2205340660 in words is "two billion, two hundred five million, three hundred forty thousand, six hundred sixty".

Divisors: 1 2 4 5 10 20 223 446 892 1115 2230 4460 494471 988942 1977884 2472355 4944710 9889420 110267033 220534066 441068132 551335165 1102670330 2205340660