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28285105246 = 2107359368171
BaseRepresentation
bin11010010101111011…
…000111010001011110
32201000020102020000121
4122111323013101132
5430411441331441
620554411545154
72020634266456
oct322573072136
981006366017
1028285105246
1110aa5228242
12559475b1ba
13288a002088
1415247a6d66
15b082d1dd1
hex695ec745e

28285105246 has 16 divisors (see below), whose sum is σ = 42943582080. Its totient is φ = 13971315160.

The previous prime is 28285105237. The next prime is 28285105259. The reversal of 28285105246 is 64250158282.

It is a congruent number.

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, 107260 + ... + 260911.

It is an arithmetic number, because the mean of its divisors is an integer number (2683973880).

Almost surely, 228285105246 is an apocalyptic number.

28285105246 is a deficient number, since it is larger than the sum of its proper divisors (14658476834).

28285105246 is a wasteful number, since it uses less digits than its factorization.

28285105246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 368639.

The product of its (nonzero) digits is 307200, while the sum is 43.

The spelling of 28285105246 in words is "twenty-eight billion, two hundred eighty-five million, one hundred five thousand, two hundred forty-six".

Divisors: 1 2 107 214 359 718 38413 76826 368171 736342 39394297 78788594 132173389 264346778 14142552623 28285105246