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26855134670 = 2571329511137
BaseRepresentation
bin11001000000101100…
…001101010111001110
32120022120200012011102
4121000230031113032
5414444403302140
620200450423102
71640331610160
oct310054152716
976276605142
1026855134670
1110431029181
125255891a92
1326bc98bb40
14142a8d2930
15a729bbe15
hex640b0d5ce

26855134670 has 32 divisors (see below), whose sum is σ = 59494454208. Its totient is φ = 8499207168.

The previous prime is 26855134639. The next prime is 26855134681. The reversal of 26855134670 is 7643155862.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a congruent number.

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, 14754659 + ... + 14756478.

It is an arithmetic number, because the mean of its divisors is an integer number (1859201694).

Almost surely, 226855134670 is an apocalyptic number.

26855134670 is an abundant number, since it is smaller than the sum of its proper divisors (32639319538).

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

26855134670 is a wasteful number, since it uses less digits than its factorization.

26855134670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29511164.

The product of its (nonzero) digits is 1209600, while the sum is 47.

The spelling of 26855134670 in words is "twenty-six billion, eight hundred fifty-five million, one hundred thirty-four thousand, six hundred seventy".

Divisors: 1 2 5 7 10 13 14 26 35 65 70 91 130 182 455 910 29511137 59022274 147555685 206577959 295111370 383644781 413155918 767289562 1032889795 1918223905 2065779590 2685513467 3836447810 5371026934 13427567335 26855134670