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2203201220 = 2251110014551
BaseRepresentation
bin1000001101010010…
…0010111011000100
312200112201012220012
42003110202323010
514003004414340
61002342125352
7105411621113
oct20324427304
95615635805
102203201220
11a30716760
12515a20858
132915b277c
1416c871c7a
15cd650565
hex83522ec4

2203201220 has 24 divisors (see below), whose sum is σ = 5047334208. Its totient is φ = 801164000.

The previous prime is 2203201199. The next prime is 2203201249. The reversal of 2203201220 is 221023022.

It is a junction number, because it is equal to n+sod(n) for n = 2203201195 and 2203201204.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5007056 + ... + 5007495.

It is an arithmetic number, because the mean of its divisors is an integer number (210305592).

Almost surely, 22203201220 is an apocalyptic number.

2203201220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2203201220 is an abundant number, since it is smaller than the sum of its proper divisors (2844132988).

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

2203201220 is a wasteful number, since it uses less digits than its factorization.

2203201220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10014571 (or 10014569 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 2203201220 is about 46938.2703132529. The cubic root of 2203201220 is about 1301.2219713296.

Adding to 2203201220 its reverse (221023022), we get a palindrome (2424224242).

The spelling of 2203201220 in words is "two billion, two hundred three million, two hundred one thousand, two hundred twenty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 10014551 20029102 40058204 50072755 100145510 110160061 200291020 220320122 440640244 550800305 1101600610 2203201220