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28784029002 = 2331315326959
BaseRepresentation
bin11010110011101010…
…010110110101001010
32202022000020011202020
4122303222112311022
5432422202412002
621120113345310
72036203131621
oct326352266512
982260204666
1028784029002
111123091a023
1256b3868236
13293949b331
141570b5c6b8
15b36ed62bc
hex6b3a96d4a

28784029002 has 16 divisors (see below), whose sum is σ = 57751985280. Its totient is φ = 9564021792.

The previous prime is 28784028979. The next prime is 28784029033. The reversal of 28784029002 is 20092048782.

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 7 ways as a sum of consecutive naturals, for example, 7661602 + ... + 7665357.

It is an arithmetic number, because the mean of its divisors is an integer number (3609499080).

Almost surely, 228784029002 is an apocalyptic number.

28784029002 is an abundant number, since it is smaller than the sum of its proper divisors (28967956278).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28784029002 is a wasteful number, since it uses less digits than its factorization.

28784029002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15327277.

The product of its (nonzero) digits is 129024, while the sum is 42.

The spelling of 28784029002 in words is "twenty-eight billion, seven hundred eighty-four million, twenty-nine thousand, two".

Divisors: 1 2 3 6 313 626 939 1878 15326959 30653918 45980877 91961754 4797338167 9594676334 14392014501 28784029002