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142340122430 = 25116172729179
BaseRepresentation
bin1000010010010000100…
…0011110011100111110
3111121101221001102020022
42010210020132130332
54313003032404210
6145220134452142
713166215035452
oct2044410363476
9447357042208
10142340122430
1155403319820
1223705504052
131056564461c
146c64342662
153a813bb155
hex212421e73e

142340122430 has 64 divisors (see below), whose sum is σ = 284486791680. Its totient is φ = 50839747200.

The previous prime is 142340122427. The next prime is 142340122453. The reversal of 142340122430 is 34221043241.

It is a self number, because there is not a number n which added to its sum of digits gives 142340122430.

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 31 ways as a sum of consecutive naturals, for example, 4863581 + ... + 4892759.

It is an arithmetic number, because the mean of its divisors is an integer number (4445106120).

Almost surely, 2142340122430 is an apocalyptic number.

142340122430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

142340122430 is a deficient number, since it is larger than the sum of its proper divisors (142146669250).

142340122430 is a wasteful number, since it uses less digits than its factorization.

142340122430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29985.

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 142340122430 its reverse (34221043241), we get a palindrome (176561165671).

The spelling of 142340122430 in words is "one hundred forty-two billion, three hundred forty million, one hundred twenty-two thousand, four hundred thirty".

Divisors: 1 2 5 10 11 22 55 61 110 122 305 610 671 727 1342 1454 3355 3635 6710 7270 7997 15994 29179 39985 44347 58358 79970 88694 145895 221735 291790 320969 443470 487817 641938 975634 1604845 1779919 2439085 3209690 3559838 4878170 8899595 17799190 19579109 21213133 39158218 42426266 97895545 106065665 195791090 212131330 233344463 466688926 1166722315 1294001113 2333444630 2588002226 6470005565 12940011130 14234012243 28468024486 71170061215 142340122430