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28966108026 = 2318126672291
BaseRepresentation
bin11010111110100000…
…111011101101111010
32202202200211202012210
4122332200323231322
5433310310424101
621150140115550
72043543566352
oct327640735572
982680752183
1028966108026
1111314681759
125744835bb6
13296811c5bb
14158add7b62
15b47ea07d6
hex6be83bb7a

28966108026 has 16 divisors (see below), whose sum is σ = 58252285728. Its totient is φ = 9602024400.

The previous prime is 28966108013. The next prime is 28966108079. The reversal of 28966108026 is 62080166982.

It is a happy number.

It is a super-3 number, since 3×289661080263 (a number of 32 digits) contains 333 as substring.

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, 13335060 + ... + 13337231.

It is an arithmetic number, because the mean of its divisors is an integer number (3640767858).

Almost surely, 228966108026 is an apocalyptic number.

28966108026 is an abundant number, since it is smaller than the sum of its proper divisors (29286177702).

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

28966108026 is a wasteful number, since it uses less digits than its factorization.

28966108026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26672477.

The product of its (nonzero) digits is 497664, while the sum is 48.

The spelling of 28966108026 in words is "twenty-eight billion, nine hundred sixty-six million, one hundred eight thousand, twenty-six".

Divisors: 1 2 3 6 181 362 543 1086 26672291 53344582 80016873 160033746 4827684671 9655369342 14483054013 28966108026