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28069499950 = 2524143131769
BaseRepresentation
bin11010001001000100…
…101001010000101110
32200110012201100011021
4122021010221100232
5424441242444300
620521150444354
72012405545552
oct321104512056
980405640137
1028069499950
11109a4556848
1255345036ba
132854442a8b
141503cc1862
15ae43e3d1a
hex68912942e

28069499950 has 48 divisors (see below), whose sum is σ = 53608443840. Its totient is φ = 10928192000.

The previous prime is 28069499947. The next prime is 28069500007. The reversal of 28069499950 is 5999496082.

It is a happy number.

It is a congruent number.

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, 867666 + ... + 899434.

It is an arithmetic number, because the mean of its divisors is an integer number (1116842580).

Almost surely, 228069499950 is an apocalyptic number.

28069499950 is a deficient number, since it is larger than the sum of its proper divisors (25538943890).

28069499950 is a wasteful number, since it uses less digits than its factorization.

28069499950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32253 (or 32248 counting only the distinct ones).

The product of its (nonzero) digits is 12597120, while the sum is 61.

The spelling of 28069499950 in words is "twenty-eight billion, sixty-nine million, four hundred ninety-nine thousand, nine hundred fifty".

Divisors: 1 2 5 10 25 41 50 82 205 410 431 862 1025 2050 2155 4310 10775 17671 21550 31769 35342 63538 88355 158845 176710 317690 441775 794225 883550 1302529 1588450 2605058 6512645 13025290 13692439 27384878 32563225 65126450 68462195 136924390 342310975 561389999 684621950 1122779998 2806949995 5613899990 14034749975 28069499950