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431312430142 = 211192373614561
BaseRepresentation
bin1100100011011000011…
…10010110010000111110
31112020021220102122001201
412101230032112100332
524031311440231032
6530050414130114
743106216110546
oct6215416262076
91466256378051
10431312430142
11156a11693640
126b7117b093a
13318988a1109
1416c38a46326
15b34586a8e7
hex646c39643e

431312430142 has 64 divisors (see below), whose sum is σ = 785852720640. Its totient is φ = 175223347200.

The previous prime is 431312430083. The next prime is 431312430173. The reversal of 431312430142 is 241034213134.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 431312430142.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 394542 + ... + 1009102.

It is an arithmetic number, because the mean of its divisors is an integer number (12278948760).

Almost surely, 2431312430142 is an apocalyptic number.

431312430142 is a deficient number, since it is larger than the sum of its proper divisors (354540290498).

431312430142 is a wasteful number, since it uses less digits than its factorization.

431312430142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 614689.

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 431312430142 its reverse (241034213134), we get a palindrome (672346643276).

The spelling of 431312430142 in words is "four hundred thirty-one billion, three hundred twelve million, four hundred thirty thousand, one hundred forty-two".

Divisors: 1 2 11 19 22 23 38 46 73 146 209 253 418 437 506 803 874 1387 1606 1679 2774 3358 4807 9614 15257 18469 30514 31901 36938 63802 350911 614561 701822 1229122 6760171 11676659 13520342 14134903 23353318 28269806 44862953 89725906 128443249 155483933 256886498 268563157 310967866 493492483 537126314 852396107 986984966 1031847919 1704792214 2063695838 2954194727 5908389454 9376357177 11350327109 18752714354 19605110461 22700654218 39210220922 215656215071 431312430142