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142024246722 = 23429210212
BaseRepresentation
bin1000010001000101001…
…1100000010111000010
3111120120220200021020000
42010101103200113002
54311331201343342
6145124532300430
713155331115151
oct2042123402702
9446526607200
10142024246722
1155260a91716
1223637771716
1310515078717
146c343d9598
153a637c344c
hex21114e05c2

142024246722 has 90 divisors (see below), whose sum is σ = 329914827099. Its totient is φ = 45664184160.

The previous prime is 142024246699. The next prime is 142024246729. The reversal of 142024246722 is 227642420241.

142024246722 is a `hidden beast` number, since 1 + 4 + 202 + 424 + 6 + 7 + 22 = 666.

It can be written as a sum of positive squares in 5 ways, for example, as 86078278881 + 55945967841 = 293391^2 + 236529^2 .

It is an ABA number since it can be written as A⋅BA, here for A=2, B=266481.

It is not an unprimeable number, because it can be changed into a prime (142024246729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 139102572 + ... + 139103592.

Almost surely, 2142024246722 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142024246722

142024246722 is an abundant number, since it is smaller than the sum of its proper divisors (187890580377).

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

142024246722 is an frugal number, since it uses more digits than its factorization.

142024246722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2114 (or 1055 counting only the distinct ones).

The product of its (nonzero) digits is 86016, while the sum is 36.

Adding to 142024246722 its reverse (227642420241), we get a palindrome (369666666963).

The spelling of 142024246722 in words is "one hundred forty-two billion, twenty-four million, two hundred forty-six thousand, seven hundred twenty-two".

Divisors: 1 2 3 6 9 18 27 29 54 58 81 87 162 174 261 522 783 841 1021 1566 1682 2042 2349 2523 3063 4698 5046 6126 7569 9189 15138 18378 22707 27567 29609 45414 55134 59218 68121 82701 88827 136242 165402 177654 266481 532962 799443 858661 1042441 1598886 1717322 2084882 2398329 2575983 3127323 4796658 5151966 6254646 7727949 9381969 15455898 18763938 23183847 28145907 30230789 46367694 56291814 60461578 69551541 84437721 90692367 139103082 168875442 181384734 272077101 544154202 816231303 876692881 1632462606 1753385762 2448693909 2630078643 4897387818 5260157286 7890235929 15780471858 23670707787 47341415574 71012123361 142024246722