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28003050050 = 2523971410733
BaseRepresentation
bin11010000101000111…
…001010001001000010
32200021120200100000212
4122011013022021002
5424322240100200
620510414314122
72010640666223
oct320507121102
980246610025
1028003050050
111096aa9aa78
1255161b8942
132843748101
1414d914524a
15add66a035
hex6851ca242

28003050050 has 24 divisors (see below), whose sum is σ = 52216908276. Its totient is φ = 11172997440.

The previous prime is 28003050013. The next prime is 28003050059. The reversal of 28003050050 is 5005030082.

It can be written as a sum of positive squares in 6 ways, for example, as 21959386969 + 6043663081 = 148187^2 + 77741^2 .

It is a junction number, because it is equal to n+sod(n) for n = 28003049998 and 28003050025.

It is not an unprimeable number, because it can be changed into a prime (28003050059) 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 11 ways as a sum of consecutive naturals, for example, 685517 + ... + 725216.

Almost surely, 228003050050 is an apocalyptic number.

28003050050 is a deficient number, since it is larger than the sum of its proper divisors (24213858226).

28003050050 is a wasteful number, since it uses less digits than its factorization.

28003050050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1411142 (or 1411137 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

The spelling of 28003050050 in words is "twenty-eight billion, three million, fifty thousand, fifty".

Divisors: 1 2 5 10 25 50 397 794 1985 3970 9925 19850 1410733 2821466 7053665 14107330 35268325 70536650 560061001 1120122002 2800305005 5600610010 14001525025 28003050050