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808080850812 = 22367340070901
BaseRepresentation
bin10111100001001010101…
…11110011111101111100
32212020210112200111100110
423300211113303331330
5101214422144211222
61415121025030020
7112244665620564
oct13604527637574
92766715614313
10808080850812
112917836345a4
12110740785310
135b28118a1c1
142b17b677da4
151604795d30c
hexbc255f3f7c

808080850812 has 12 divisors (see below), whose sum is σ = 1885521985256. Its totient is φ = 269360283600.

The previous prime is 808080850751. The next prime is 808080850817. The reversal of 808080850812 is 218058080808.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×8080808508122 (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (808080850817) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33670035439 + ... + 33670035462.

Almost surely, 2808080850812 is an apocalyptic number.

It is an amenable number.

808080850812 is an abundant number, since it is smaller than the sum of its proper divisors (1077441134444).

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

808080850812 is a wasteful number, since it uses less digits than its factorization.

808080850812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67340070908 (or 67340070906 counting only the distinct ones).

The product of its (nonzero) digits is 327680, while the sum is 48.

The spelling of 808080850812 in words is "eight hundred eight billion, eighty million, eight hundred fifty thousand, eight hundred twelve".

Divisors: 1 2 3 4 6 12 67340070901 134680141802 202020212703 269360283604 404040425406 808080850812