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28568653113 = 37211131359053
BaseRepresentation
bin11010100110110100…
…110000110100111001
32201201222221221120110
4122212310300310321
5432002033344423
621042501214533
72030646354600
oct324664606471
981658857513
1028568653113
1111130294a20
125653701449
13290398c590
1415502d6a37
15b23141193
hex6a6d30d39

28568653113 has 48 divisors (see below), whose sum is σ = 52057204416. Its totient is φ = 13699244160.

The previous prime is 28568653111. The next prime is 28568653121. The reversal of 28568653113 is 31135686582.

It is not a de Polignac number, because 28568653113 - 21 = 28568653111 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28568653111) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 658506 + ... + 700547.

It is an arithmetic number, because the mean of its divisors is an integer number (1084525092).

Almost surely, 228568653113 is an apocalyptic number.

It is an amenable number.

28568653113 is a deficient number, since it is larger than the sum of its proper divisors (23488551303).

28568653113 is a wasteful number, since it uses less digits than its factorization.

28568653113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1359094 (or 1359087 counting only the distinct ones).

The product of its digits is 1036800, while the sum is 48.

The spelling of 28568653113 in words is "twenty-eight billion, five hundred sixty-eight million, six hundred fifty-three thousand, one hundred thirteen".

Divisors: 1 3 7 11 13 21 33 39 49 77 91 143 147 231 273 429 539 637 1001 1617 1911 3003 7007 21021 1359053 4077159 9513371 14949583 17667689 28540113 44848749 53003067 66593597 104647081 123673823 194344579 199780791 313941243 371021469 583033737 732529567 865716761 1360412053 2197588701 2597150283 4081236159 9522884371 28568653113