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82918992050 = 25225133119961
BaseRepresentation
bin100110100111001011…
…0110110100010110010
321221000202201020022122
41031032112312202302
52324304230221200
6102031545434242
75663544542336
oct1151626664262
9257022636278
1082918992050
1132190678004
12140a149b982
137a85ac524b
1440286d57c6
1522548b0385
hex134e5b68b2

82918992050 has 48 divisors (see below), whose sum is σ = 155319371424. Its totient is φ = 32934000000.

The previous prime is 82918992049. The next prime is 82918992053. The reversal of 82918992050 is 5029981928.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 82918991983 and 82918992001.

It is not an unprimeable number, because it can be changed into a prime (82918992053) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 4144070 + ... + 4164030.

It is an arithmetic number, because the mean of its divisors is an integer number (3235820238).

Almost surely, 282918992050 is an apocalyptic number.

82918992050 is a deficient number, since it is larger than the sum of its proper divisors (72400379374).

82918992050 is a wasteful number, since it uses less digits than its factorization.

82918992050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20555 (or 20550 counting only the distinct ones).

The product of its (nonzero) digits is 933120, while the sum is 53.

The spelling of 82918992050 in words is "eighty-two billion, nine hundred eighteen million, nine hundred ninety-two thousand, fifty".

Divisors: 1 2 5 10 25 50 251 331 502 662 1255 1655 2510 3310 6275 8275 12550 16550 19961 39922 83081 99805 166162 199610 415405 499025 830810 998050 2077025 4154050 5010211 6607091 10020422 13214182 25051055 33035455 50102110 66070910 125255275 165177275 250510550 330354550 1658379841 3316759682 8291899205 16583798410 41459496025 82918992050