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213325201220 = 22510666260061
BaseRepresentation
bin1100011010101100101…
…1000011111101000100
3202101122000000001011112
43012223023003331010
511443342222414340
6242000015224152
721261253202105
oct3065313037504
9671560001145
10213325201220
118251a57309a
1235416218058
1317168ba3621
14a479b003ac
155838212065
hex31ab2c3f44

213325201220 has 12 divisors (see below), whose sum is σ = 447982922604. Its totient is φ = 85330080480.

The previous prime is 213325201189. The next prime is 213325201261. The reversal of 213325201220 is 22102523312.

213325201220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 35482503424 + 177842697796 = 188368^2 + 421714^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5333130011 + ... + 5333130050.

It is an arithmetic number, because the mean of its divisors is an integer number (37331910217).

Almost surely, 2213325201220 is an apocalyptic number.

213325201220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213325201220 is an abundant number, since it is smaller than the sum of its proper divisors (234657721384).

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

213325201220 is a wasteful number, since it uses less digits than its factorization.

213325201220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10666260070 (or 10666260068 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

Adding to 213325201220 its reverse (22102523312), we get a palindrome (235427724532).

The spelling of 213325201220 in words is "two hundred thirteen billion, three hundred twenty-five million, two hundred one thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 10666260061 21332520122 42665040244 53331300305 106662600610 213325201220