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213243020032 = 287216999603
BaseRepresentation
bin1100011010011001000…
…1100100001100000000
3202101102021100210202211
43012212101210030000
511443210203120112
6241543521551504
721256234522600
oct3064621441400
9671367323684
10213243020032
1182488142159
12353b27a5594
1317154b5b4c3
14a46cc2ac00
155830dcc0a7
hex31a6464300

213243020032 has 54 divisors (see below), whose sum is σ = 495147465708. Its totient is φ = 91389860352.

The previous prime is 213243020009. The next prime is 213243020033. The reversal of 213243020032 is 230020342312.

213243020032 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 213243019985 and 213243020012.

It is not an unprimeable number, because it can be changed into a prime (213243020033) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 8487258 + ... + 8512345.

Almost surely, 2213243020032 is an apocalyptic number.

It is an amenable number.

213243020032 is an abundant number, since it is smaller than the sum of its proper divisors (281904445676).

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

213243020032 is an equidigital number, since it uses as much as digits as its factorization.

213243020032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16999633 (or 16999612 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 22.

Adding to 213243020032 its reverse (230020342312), we get a palindrome (443263362344).

The spelling of 213243020032 in words is "two hundred thirteen billion, two hundred forty-three million, twenty thousand, thirty-two".

Divisors: 1 2 4 7 8 14 16 28 32 49 56 64 98 112 128 196 224 256 392 448 784 896 1568 1792 3136 6272 12544 16999603 33999206 67998412 118997221 135996824 237994442 271993648 475988884 543987296 832980547 951977768 1087974592 1665961094 1903955536 2175949184 3331922188 3807911072 4351898368 6663844376 7615822144 13327688752 15231644288 26655377504 30463288576 53310755008 106621510016 213243020032