Base | Representation |
---|---|
bin | 10111100010100101010… |
… | …00000010101011010000 |
3 | 2212022202110022100002222 |
4 | 23301102220002223100 |
5 | 101223001030030310 |
6 | 1415324230000212 |
7 | 112302545146154 |
oct | 13612250025320 |
9 | 2768673270088 |
10 | 808840080080 |
11 | 2920331587aa |
12 | 110912aa6068 |
13 | 5b3725667a6 |
14 | 2b21042d064 |
15 | 1608e430055 |
hex | bc52a02ad0 |
808840080080 has 40 divisors (see below), whose sum is σ = 1991173965192. Its totient is φ = 304504500224.
The previous prime is 808840080079. The next prime is 808840080101. The reversal of 808840080080 is 80080048808.
It can be written as a sum of positive squares in 4 ways, for example, as 438874450576 + 369965629504 = 662476^2 + 608248^2 .
It is a tau number, because it is divible by the number of its divisors (40).
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, 297366317 + ... + 297369036.
Almost surely, 2808840080080 is an apocalyptic number.
808840080080 is a gapful number since it is divisible by the number (80) formed by its first and last digit.
It is an amenable number.
808840080080 is an abundant number, since it is smaller than the sum of its proper divisors (1182333885112).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
808840080080 is a wasteful number, since it uses less digits than its factorization.
808840080080 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 594735383 (or 594735377 counting only the distinct ones).
The product of its (nonzero) digits is 131072, while the sum is 44.
The spelling of 808840080080 in words is "eight hundred eight billion, eight hundred forty million, eighty thousand, eighty".
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