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28327919282 = 2139531143269
BaseRepresentation
bin11010011000011110…
…011011111010110010
32201010012222101211122
4122120132123322302
5431003421404112
621002541342242
72021664224645
oct323036337262
981105871748
1028327919282
1111017410043
1255a6b67982
132895b42720
14152a34da5c
15b0be3c872
hex69879beb2

28327919282 has 16 divisors (see below), whose sum is σ = 45808542360. Its totient is φ = 13060693632.

The previous prime is 28327919251. The next prime is 28327919353. The reversal of 28327919282 is 28291972382.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 21600474841 + 6727444441 = 146971^2 + 82021^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 546857 + ... + 596412.

Almost surely, 228327919282 is an apocalyptic number.

28327919282 is a deficient number, since it is larger than the sum of its proper divisors (17480623078).

28327919282 is a wasteful number, since it uses less digits than its factorization.

28327919282 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1144237.

The product of its digits is 1741824, while the sum is 53.

The spelling of 28327919282 in words is "twenty-eight billion, three hundred twenty-seven million, nine hundred nineteen thousand, two hundred eighty-two".

Divisors: 1 2 13 26 953 1906 12389 24778 1143269 2286538 14862497 29724994 1089535357 2179070714 14163959641 28327919282