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28636360496 = 24234312171487
BaseRepresentation
bin11010101010110111…
…000010111100110000
32201220201100211122022
4122222313002330300
5432121402013441
621053320331012
72032431022322
oct325267027460
981821324568
1028636360496
111116552a537
125672313a68
132914a07713
1415592bd612
15b2906784b
hex6aadc2f30

28636360496 has 80 divisors (see below), whose sum is σ = 59330202624. Its totient is φ = 13357166592.

The previous prime is 28636360433. The next prime is 28636360507. The reversal of 28636360496 is 69406363682.

It is a super-2 number, since 2×286363604962 (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19257065 + ... + 19258551.

Almost surely, 228636360496 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28636360496, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29665101312).

28636360496 is an abundant number, since it is smaller than the sum of its proper divisors (30693842128).

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

28636360496 is a wasteful number, since it uses less digits than its factorization.

28636360496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2778 (or 2772 counting only the distinct ones).

The product of its (nonzero) digits is 6718464, while the sum is 53.

The spelling of 28636360496 in words is "twenty-eight billion, six hundred thirty-six million, three hundred sixty thousand, four hundred ninety-six".

Divisors: 1 2 4 8 16 23 43 46 86 92 172 184 344 368 688 989 1217 1487 1978 2434 2974 3956 4868 5948 7912 9736 11896 15824 19472 23792 27991 34201 52331 55982 63941 68402 104662 111964 127882 136804 209324 223928 255764 273608 418648 447856 511528 547216 837296 1023056 1203613 1470643 1809679 2407226 2941286 3619358 4814452 5882572 7238716 9628904 11765144 14477432 19257808 23530288 28954864 41622617 77816197 83245234 155632394 166490468 311264788 332980936 622529576 665961872 1245059152 1789772531 3579545062 7159090124 14318180248 28636360496