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28300650 = 2352726953
BaseRepresentation
bin110101111110…
…1010101101010
31222020211012020
41223331111222
524221110100
62450325310
7462360120
oct153752552
958224166
1028300650
1114a7a774
129589836
135b2b661
143a89910
1527405a0
hex1afd56a

28300650 has 48 divisors (see below), whose sum is σ = 80215104. Its totient is φ = 6468480.

The previous prime is 28300637. The next prime is 28300669. The reversal of 28300650 is 5600382.

It is a self number, because there is not a number n which added to its sum of digits gives 28300650.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12427 + ... + 14526.

It is an arithmetic number, because the mean of its divisors is an integer number (1671148).

Almost surely, 228300650 is an apocalyptic number.

28300650 is an abundant number, since it is smaller than the sum of its proper divisors (51914454).

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

28300650 is a wasteful number, since it uses less digits than its factorization.

28300650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26975 (or 26970 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 28300650 is about 5319.8355237733. The cubic root of 28300650 is about 304.7418760283.

The spelling of 28300650 in words is "twenty-eight million, three hundred thousand, six hundred fifty".

Divisors: 1 2 3 5 6 7 10 14 15 21 25 30 35 42 50 70 75 105 150 175 210 350 525 1050 26953 53906 80859 134765 161718 188671 269530 377342 404295 566013 673825 808590 943355 1132026 1347650 1886710 2021475 2830065 4042950 4716775 5660130 9433550 14150325 28300650