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28630950299 = 7171912662959
BaseRepresentation
bin11010101010100010…
…011010000110011011
32201220100011222020122
4122222202122012123
5432114010402144
621053004343455
72032334030210
oct325242320633
981810158218
1028630950299
11111624747a6
125670544b8b
132913862013
1415586b1b07
15b288497ee
hex6aa89a19b

28630950299 has 16 divisors (see below), whose sum is σ = 36469324800. Its totient is φ = 21881591424.

The previous prime is 28630950287. The next prime is 28630950307. The reversal of 28630950299 is 99205903682.

It is a de Polignac number, because none of the positive numbers 2k-28630950299 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 28630950299.

It is not an unprimeable number, because it can be changed into a prime (28630950259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6329219 + ... + 6333740.

It is an arithmetic number, because the mean of its divisors is an integer number (2279332800).

Almost surely, 228630950299 is an apocalyptic number.

28630950299 is a deficient number, since it is larger than the sum of its proper divisors (7838374501).

28630950299 is a wasteful number, since it uses less digits than its factorization.

28630950299 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12663002.

The product of its (nonzero) digits is 2099520, while the sum is 53.

The spelling of 28630950299 in words is "twenty-eight billion, six hundred thirty million, nine hundred fifty thousand, two hundred ninety-nine".

Divisors: 1 7 17 19 119 133 323 2261 12662959 88640713 215270303 240596221 1506892121 1684173547 4090135757 28630950299