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83993429522 = 22049312
BaseRepresentation
bin100111000111001100…
…1100000011000010010
322000210122110022110002
41032032121200120102
52334004304221042
6102330330410002
76032302241162
oct1161631403022
9260718408402
1083993429522
1132692112862
1214341290902
137bc7595972
1440cb29c5a2
1522b8d97132
hex138e660612

83993429522 has 6 divisors (see below), whose sum is σ = 125990759079. Its totient is φ = 41996509830.

The previous prime is 83993429521. The next prime is 83993429537. The reversal of 83993429522 is 22592439938.

It can be written as a sum of positive squares in only one way, i.e., 41996714761 + 41996714761 = 204931^2 + 204931^2 .

It is an ABA number since it can be written as A⋅BA, here for A=2, B=204931.

It is a super-2 number, since 2×839934295222 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83993429521) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 307397 + ... + 512327.

Almost surely, 283993429522 is an apocalyptic number.

83993429522 is a deficient number, since it is larger than the sum of its proper divisors (41997329557).

83993429522 is an frugal number, since it uses more digits than its factorization.

83993429522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 409864 (or 204933 counting only the distinct ones).

The product of its digits is 8398080, while the sum is 56.

The spelling of 83993429522 in words is "eighty-three billion, nine hundred ninety-three million, four hundred twenty-nine thousand, five hundred twenty-two".

Divisors: 1 2 204931 409862 41996714761 83993429522