Base | Representation |
---|---|
bin | 100101011000100111… |
… | …0011011100111010110 |
3 | 21200020001011212010000 |
4 | 1022301032123213112 |
5 | 2303404341333221 |
6 | 100514214112130 |
7 | 5541324133461 |
oct | 1126116334726 |
9 | 250201155100 |
10 | 80282761686 |
11 | 31058587126 |
12 | 1368664b646 |
13 | 77558a851a |
14 | 3c585422d8 |
15 | 214d224e26 |
hex | 12b139b9d6 |
80282761686 has 40 divisors (see below), whose sum is σ = 185695861824. Its totient is φ = 25897663440.
The previous prime is 80282761661. The next prime is 80282761693. The reversal of 80282761686 is 68616728208.
It is a Harshad number since it is a multiple of its sum of digits (54).
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 19 ways as a sum of consecutive naturals, for example, 7988085 + ... + 7998128.
Almost surely, 280282761686 is an apocalyptic number.
80282761686 is an abundant number, since it is smaller than the sum of its proper divisors (105413100138).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
80282761686 is a wasteful number, since it uses less digits than its factorization.
80282761686 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 15986258 (or 15986249 counting only the distinct ones).
The product of its (nonzero) digits is 3096576, while the sum is 54.
The spelling of 80282761686 in words is "eighty billion, two hundred eighty-two million, seven hundred sixty-one thousand, six hundred eighty-six".
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