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28669104786 = 237682597733
BaseRepresentation
bin11010101100110011…
…111101001010010010
32201222222222102100210
4122230303331022102
5432203242323121
621100450224550
72033306240610
oct325463751222
981888872323
1028669104786
1111181a64833
125681285156
13291b73083a
14155d7a46b0
15b2bd84876
hex6accfd292

28669104786 has 16 divisors (see below), whose sum is σ = 65529382464. Its totient is φ = 8191172784.

The previous prime is 28669104743. The next prime is 28669104811. The reversal of 28669104786 is 68740196682.

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, 341298825 + ... + 341298908.

It is an arithmetic number, because the mean of its divisors is an integer number (4095586404).

Almost surely, 228669104786 is an apocalyptic number.

28669104786 is an abundant number, since it is smaller than the sum of its proper divisors (36860277678).

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

28669104786 is a wasteful number, since it uses less digits than its factorization.

28669104786 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 682597745.

The product of its (nonzero) digits is 6967296, while the sum is 57.

The spelling of 28669104786 in words is "twenty-eight billion, six hundred sixty-nine million, one hundred four thousand, seven hundred eighty-six".

Divisors: 1 2 3 6 7 14 21 42 682597733 1365195466 2047793199 4095586398 4778184131 9556368262 14334552393 28669104786