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212303121310 = 25719415373459
BaseRepresentation
bin1100010110111001000…
…0001000101110011110
3202021222202210000010001
43011232100020232132
511434244044340220
6241310344404514
721224032520230
oct3055620105636
9667882700101
10212303121310
1182045639355
123518ba7673a
1317035205407
14a3c0086250
1557c861d80a
hex316e408b9e

212303121310 has 128 divisors (see below), whose sum is σ = 479828966400. Its totient is φ = 66006420480.

The previous prime is 212303121299. The next prime is 212303121311. The reversal of 212303121310 is 13121303212.

It is a super-2 number, since 2×2123031213102 (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212303121311) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2853361 + ... + 2926819.

It is an arithmetic number, because the mean of its divisors is an integer number (3748663800).

Almost surely, 2212303121310 is an apocalyptic number.

212303121310 is an abundant number, since it is smaller than the sum of its proper divisors (267525845090).

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

212303121310 is a wasteful number, since it uses less digits than its factorization.

212303121310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73586.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 212303121310 its reverse (13121303212), we get a palindrome (225424424522).

The spelling of 212303121310 in words is "two hundred twelve billion, three hundred three million, one hundred twenty-one thousand, three hundred ten".

Divisors: 1 2 5 7 10 14 19 35 38 41 53 70 82 95 106 133 190 205 265 266 287 371 410 530 574 665 742 779 1007 1330 1435 1558 1855 2014 2173 2870 3710 3895 4346 5035 5453 7049 7790 10070 10865 10906 14098 15211 21730 27265 30422 35245 41287 54530 70490 73459 76055 82574 146918 152110 206435 289009 367295 412870 514213 578018 734590 1028426 1395721 1445045 2571065 2791442 2890090 3011819 3893327 5142130 6023638 6978605 7786654 9770047 13957210 15059095 19466635 19540094 21082733 27253289 30118190 38933270 42165466 48850235 54506578 57224561 73973213 97700470 105413665 114449122 136266445 147946426 159626407 210827330 272532890 286122805 319252814 369866065 400571927 517812491 572245610 739732130 798132035 801143854 1035624982 1117384849 1596264070 2002859635 2234769698 2589062455 3032901733 4005719270 5178124910 5586924245 6065803466 11173848490 15164508665 21230312131 30329017330 42460624262 106151560655 212303121310