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212240431231430 = 2572716100616017
BaseRepresentation
bin110000010000100000010011…
…100000101011000111000110
31000211110222122120111012200012
4300100200103200223013012
5210304321400343401210
62031221524051150222
762463602512144400
oct6020402340530706
91024428576435605
10212240431231430
11616987303739a8
121b97974aba5372
1391572574a80c4
143a5a6c5265b70
151980cd9bed305
hexc1081382b1c6

212240431231430 has 48 divisors (see below), whose sum is σ = 450664706481696. Its totient is φ = 71743244348160.

The previous prime is 212240431231429. The next prime is 212240431231457. The reversal of 212240431231430 is 34132134042212.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3050273219 + ... + 3050342798.

It is an arithmetic number, because the mean of its divisors is an integer number (9388848051702).

Almost surely, 2212240431231430 is an apocalyptic number.

212240431231430 is an abundant number, since it is smaller than the sum of its proper divisors (238424275250266).

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

212240431231430 is a wasteful number, since it uses less digits than its factorization.

212240431231430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6100616109 (or 6100616102 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 32.

Adding to 212240431231430 its reverse (34132134042212), we get a palindrome (246372565273642).

The spelling of 212240431231430 in words is "two hundred twelve trillion, two hundred forty billion, four hundred thirty-one million, two hundred thirty-one thousand, four hundred thirty".

Divisors: 1 2 5 7 10 14 35 49 70 71 98 142 245 355 490 497 710 994 2485 3479 4970 6958 17395 34790 6100616017 12201232034 30503080085 42704312119 61006160170 85408624238 213521560595 298930184833 427043121190 433143737207 597860369666 866287474414 1494650924165 2165718686035 2989301848330 3032006160449 4331437372070 6064012320898 15160030802245 21224043123143 30320061604490 42448086246286 106120215615715 212240431231430