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212311303332 = 223172131467329
BaseRepresentation
bin1100010110111010111…
…1010110010010100100
3202022000100011200201220
43011232233112102210
511434303143201312
6241311240020340
721224162205432
oct3055657262244
9668010150656
10212311303332
118204a217657
12351927616b0
1317036b0b64b
14a3c11b5d52
1557c91d7c8c
hex316ebd64a4

212311303332 has 72 divisors (see below), whose sum is σ = 530266265760. Its totient is φ = 66098872320.

The previous prime is 212311303327. The next prime is 212311303339. The reversal of 212311303332 is 233303113212.

It is not an unprimeable number, because it can be changed into a prime (212311303339) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 220644 + ... + 687972.

Almost surely, 2212311303332 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 212311303332, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (265133132880).

212311303332 is an abundant number, since it is smaller than the sum of its proper divisors (317954962428).

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

212311303332 is a wasteful number, since it uses less digits than its factorization.

212311303332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 467501 (or 467482 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 24.

Adding to 212311303332 its reverse (233303113212), we get a palindrome (445614416544).

The spelling of 212311303332 in words is "two hundred twelve billion, three hundred eleven million, three hundred three thousand, three hundred thirty-two".

Divisors: 1 2 3 4 6 12 17 34 51 68 102 131 204 262 289 393 524 578 786 867 1156 1572 1734 2227 3468 4454 6681 8908 13362 26724 37859 75718 113577 151436 227154 454308 467329 934658 1401987 1869316 2803974 5607948 7944593 15889186 23833779 31778372 47667558 61220099 95335116 122440198 135058081 183660297 244880396 270116162 367320594 405174243 540232324 734641188 810348486 1040741683 1620696972 2081483366 3122225049 4162966732 6244450098 12488900196 17692608611 35385217222 53077825833 70770434444 106155651666 212311303332