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28886749800 = 2335248144583
BaseRepresentation
bin11010111001110010…
…001101001001101000
32202120011111221012020
4122321302031021220
5433130001443200
621134223144440
72041561215306
oct327162151150
982504457166
1028886749800
11112838a9747
125722145120
13295485537c
14158065b276
15b41026ea0
hex6b9c8d268

28886749800 has 48 divisors (see below), whose sum is σ = 89548926240. Its totient is φ = 7703133120.

The previous prime is 28886749799. The next prime is 28886749813. The reversal of 28886749800 is 894768882.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 24071692 + ... + 24072891.

It is an arithmetic number, because the mean of its divisors is an integer number (1865602630).

Almost surely, 228886749800 is an apocalyptic number.

28886749800 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28886749800 is an abundant number, since it is smaller than the sum of its proper divisors (60662176440).

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

28886749800 is a wasteful number, since it uses less digits than its factorization.

28886749800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48144602 (or 48144593 counting only the distinct ones).

The product of its (nonzero) digits is 12386304, while the sum is 60.

The spelling of 28886749800 in words is "twenty-eight billion, eight hundred eighty-six million, seven hundred forty-nine thousand, eight hundred".

Divisors: 1 2 3 4 5 6 8 10 12 15 20 24 25 30 40 50 60 75 100 120 150 200 300 600 48144583 96289166 144433749 192578332 240722915 288867498 385156664 481445830 577734996 722168745 962891660 1155469992 1203614575 1444337490 1925783320 2407229150 2888674980 3610843725 4814458300 5777349960 7221687450 9628916600 14443374900 28886749800