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82003893980 = 22519458347087
BaseRepresentation
bin100110001011111010…
…0000001111011011100
321211122222210102202112
41030113310001323130
52320420444101410
6101401100013152
75632063412051
oct1142764017334
9254588712675
1082003893980
1131861073308
1213a86b311b8
13796b3436b8
143d7cd69028
1521ee3a0105
hex1317d01edc

82003893980 has 48 divisors (see below), whose sum is σ = 181315169280. Its totient is φ = 31067719488.

The previous prime is 82003893941. The next prime is 82003894013. The reversal of 82003893980 is 8939830028.

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 (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1717997 + ... + 1765083.

It is an arithmetic number, because the mean of its divisors is an integer number (3777399360).

Almost surely, 282003893980 is an apocalyptic number.

It is an amenable number.

82003893980 is an abundant number, since it is smaller than the sum of its proper divisors (99311275300).

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

82003893980 is a wasteful number, since it uses less digits than its factorization.

82003893980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51698 (or 51696 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 50.

The spelling of 82003893980 in words is "eighty-two billion, three million, eight hundred ninety-three thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 19 20 38 76 95 190 380 4583 9166 18332 22915 45830 47087 87077 91660 94174 174154 188348 235435 348308 435385 470870 870770 894653 941740 1741540 1789306 3578612 4473265 8946530 17893060 215799721 431599442 863198884 1078998605 2157997210 4100194699 4315994420 8200389398 16400778796 20500973495 41001946990 82003893980