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28888103875 = 53231104831
BaseRepresentation
bin11010111001110111…
…010111101111000011
32202120021001201122011
4122321313113233003
5433130323311000
621134312153351
72041605555121
oct327167275703
982507051564
1028888103875
1111284644014
125722698857
132954c0a7b7
1415808d0911
15b411e32ba
hex6b9dd7bc3

28888103875 has 8 divisors (see below), whose sum is σ = 36052353792. Its totient is φ = 23110483000.

The previous prime is 28888103863. The next prime is 28888103903. The reversal of 28888103875 is 57830188882.

It is not a de Polignac number, because 28888103875 - 213 = 28888095683 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 115552291 + ... + 115552540.

It is an arithmetic number, because the mean of its divisors is an integer number (4506544224).

Almost surely, 228888103875 is an apocalyptic number.

28888103875 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

28888103875 is a deficient number, since it is larger than the sum of its proper divisors (7164249917).

28888103875 is an equidigital number, since it uses as much as digits as its factorization.

28888103875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231104846 (or 231104836 counting only the distinct ones).

The product of its (nonzero) digits is 6881280, while the sum is 58.

The spelling of 28888103875 in words is "twenty-eight billion, eight hundred eighty-eight million, one hundred three thousand, eight hundred seventy-five".

Divisors: 1 5 25 125 231104831 1155524155 5777620775 28888103875