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28975110508 = 22711572392719
BaseRepresentation
bin11010111111000011…
…010001100101101100
32202210022210010022001
4122333003101211230
5433320112014013
621151101102044
72044013242561
oct327703214554
982708703261
1028975110508
1111319770423
125747857924
132969c52106
14158c29c868
15b48b7cddd
hex6bf0d196c

28975110508 has 48 divisors (see below), whose sum is σ = 51983769600. Its totient is φ = 14127946560.

The previous prime is 28975110487. The next prime is 28975110553. The reversal of 28975110508 is 80501157982.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 10655173 + ... + 10657891.

It is an arithmetic number, because the mean of its divisors is an integer number (1082995200).

Almost surely, 228975110508 is an apocalyptic number.

It is an amenable number.

28975110508 is a deficient number, since it is larger than the sum of its proper divisors (23008659092).

28975110508 is a wasteful number, since it uses less digits than its factorization.

28975110508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3190 (or 3188 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 46.

The spelling of 28975110508 in words is "twenty-eight billion, nine hundred seventy-five million, one hundred ten thousand, five hundred eight".

Divisors: 1 2 4 71 142 157 239 284 314 478 628 956 2719 5438 10876 11147 16969 22294 33938 37523 44588 67876 75046 150092 193049 386098 426883 649841 772196 853766 1299682 1707532 2599364 2664133 5328266 10656532 30308693 46138711 60617386 92277422 102025037 121234772 184554844 204050074 408100148 7243777627 14487555254 28975110508