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28002550250 = 253112010201
BaseRepresentation
bin11010000101000101…
…010000000111101010
32200021112201221102202
4122011011100013222
5424322123102000
620510355500202
72010633515123
oct320505200752
980245657382
1028002550250
111096a789514
125515bb7662
13284360177c
1414d905504a
15add5bbdd5
hex6851501ea

28002550250 has 16 divisors (see below), whose sum is σ = 52420774536. Its totient is φ = 11201020000.

The previous prime is 28002550243. The next prime is 28002550259. The reversal of 28002550250 is 5205520082.

It can be written as a sum of positive squares in 4 ways, for example, as 16960113361 + 11042436889 = 130231^2 + 105083^2 .

It is not an unprimeable number, because it can be changed into a prime (28002550259) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56004851 + ... + 56005350.

Almost surely, 228002550250 is an apocalyptic number.

28002550250 is a deficient number, since it is larger than the sum of its proper divisors (24418224286).

28002550250 is a wasteful number, since it uses less digits than its factorization.

28002550250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112010218 (or 112010208 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 29.

The spelling of 28002550250 in words is "twenty-eight billion, two million, five hundred fifty thousand, two hundred fifty".

Divisors: 1 2 5 10 25 50 125 250 112010201 224020402 560051005 1120102010 2800255025 5600510050 14001275125 28002550250