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212212401232 = 24132935181101
BaseRepresentation
bin1100010110100011011…
…0000100010001010000
3202021202110001221120011
43011220312010101100
511434102333314412
6241253344124304
721221551435216
oct3055066042120
9667673057504
10212212401232
1181aa9405a87
1235165606694
131701c4907b0
14a3b1dcccb6
1557c069d7a7
hex3168d84450

212212401232 has 40 divisors (see below), whose sum is σ = 458057948040. Its totient is φ = 94566796800.

The previous prime is 212212401227. The next prime is 212212401241. The reversal of 212212401232 is 232104212212.

212212401232 is digitally balanced in base 3, 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 4 ways, for example, as 41540961856 + 170671439376 = 203816^2 + 413124^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17584519 + ... + 17596582.

It is an arithmetic number, because the mean of its divisors is an integer number (11451448701).

Almost surely, 2212212401232 is an apocalyptic number.

It is an amenable number.

212212401232 is an abundant number, since it is smaller than the sum of its proper divisors (245845546808).

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

212212401232 is a wasteful number, since it uses less digits than its factorization.

212212401232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35181151 (or 35181145 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 212212401232 its reverse (232104212212), we get a palindrome (444316613444).

The spelling of 212212401232 in words is "two hundred twelve billion, two hundred twelve million, four hundred one thousand, two hundred thirty-two".

Divisors: 1 2 4 8 13 16 26 29 52 58 104 116 208 232 377 464 754 1508 3016 6032 35181101 70362202 140724404 281448808 457354313 562897616 914708626 1020251929 1829417252 2040503858 3658834504 4081007716 7317669008 8162015432 13263275077 16324030864 26526550154 53053100308 106106200616 212212401232