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213232012230 = 23531722421873
BaseRepresentation
bin1100011010010110011…
…1100100101111000110
3202101101111122112220110
43012211213210233012
511443144343342410
6241542450013450
721256042125066
oct3064547445706
9671344575813
10213232012230
1182481a038a6
12353aab77286
13171527a6003
14a46b5a33a6
15582ee55720
hex31a59e4bc6

213232012230 has 32 divisors (see below), whose sum is σ = 513371227104. Its totient is φ = 56682492416.

The previous prime is 213232012187. The next prime is 213232012241. The reversal of 213232012230 is 32210232312.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 213232012197 and 213232012206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11201427 + ... + 11220446.

It is an arithmetic number, because the mean of its divisors is an integer number (16042850847).

Almost surely, 2213232012230 is an apocalyptic number.

213232012230 is an abundant number, since it is smaller than the sum of its proper divisors (300139214874).

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

213232012230 is a wasteful number, since it uses less digits than its factorization.

213232012230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22422200.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 213232012230 its reverse (32210232312), we get a palindrome (245442244542).

The spelling of 213232012230 in words is "two hundred thirteen billion, two hundred thirty-two million, twelve thousand, two hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 317 634 951 1585 1902 3170 4755 9510 22421873 44843746 67265619 112109365 134531238 224218730 336328095 672656190 7107733741 14215467482 21323201223 35538668705 42646402446 71077337410 106616006115 213232012230