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212323312322310 = 23571039816149437
BaseRepresentation
bin110000010001101101011111…
…100110111100011100000110
31000211202220120200212212100210
4300101231133212330130012
5210312201120423303220
62031323552204420250
762502565416613020
oct6021553746743406
91024686520785323
10212323312322310
116171a8a1604222
121b99181b847686
13916200548cc07
143a607088d3010
15198303b0c36e0
hexc11b5f9bc706

212323312322310 has 64 divisors (see below), whose sum is σ = 588026615933952. Its totient is φ = 48059867638656.

The previous prime is 212323312322249. The next prime is 212323312322333. The reversal of 212323312322310 is 13223213323212.

It is a super-2 number, since 2×2123233123223102 (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4908053089 + ... + 4908096348.

It is an arithmetic number, because the mean of its divisors is an integer number (9187915873968).

Almost surely, 2212323312322310 is an apocalyptic number.

212323312322310 is an abundant number, since it is smaller than the sum of its proper divisors (375703303611642).

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

212323312322310 is a wasteful number, since it uses less digits than its factorization.

212323312322310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9816149557.

The product of its (nonzero) digits is 15552, while the sum is 30.

Adding to 212323312322310 its reverse (13223213323212), we get a palindrome (225546525645522).

The spelling of 212323312322310 in words is "two hundred twelve trillion, three hundred twenty-three billion, three hundred twelve million, three hundred twenty-two thousand, three hundred ten".

Divisors: 1 2 3 5 6 7 10 14 15 21 30 35 42 70 103 105 206 210 309 515 618 721 1030 1442 1545 2163 3090 3605 4326 7210 10815 21630 9816149437 19632298874 29448448311 49080747185 58896896622 68713046059 98161494370 137426092118 147242241555 206139138177 294484483110 343565230295 412278276354 687130460590 1011063392011 1030695690885 2022126784022 2061391381770 3033190176033 5055316960055 6066380352066 7077443744077 10110633920110 14154887488154 15165950880165 21232331232231 30331901760330 35387218720385 42464662464462 70774437440770 106161656161155 212323312322310