Base | Representation |
---|---|
bin | 1001011010110010001001… |
… | …00101000101000110000000 |
3 | 2201022222221212000020202100 |
4 | 10231121010211011012000 |
5 | 10203314104103402232 |
6 | 112014420205150400 |
7 | 4235232565450620 |
oct | 455310445050600 |
9 | 81288855006670 |
10 | 20711482872192 |
11 | 6665766152552 |
12 | 23a603585b400 |
13 | b731137143b8 |
14 | 51862660a880 |
15 | 25db470b0c7c |
hex | 12d644945180 |
20711482872192 has 192 divisors, whose sum is σ = 68143370724000. Its totient is φ = 5914985029632.
The previous prime is 20711482872187. The next prime is 20711482872203. The reversal of 20711482872192 is 29127828411702.
20711482872192 is a `hidden beast` number, since 2 + 0 + 7 + 1 + 1 + 482 + 8 + 72 + 1 + 92 = 666.
It is a tau number, because it is divible by the number of its divisors (192).
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17963934 + ... + 19082082.
Almost surely, 220711482872192 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 20711482872192, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34071685362000).
20711482872192 is an abundant number, since it is smaller than the sum of its proper divisors (47431887851808).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20711482872192 is a wasteful number, since it uses less digits than its factorization.
20711482872192 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1120473 (or 1120458 counting only the distinct ones).
The product of its (nonzero) digits is 1806336, while the sum is 54.
The spelling of 20711482872192 in words is "twenty trillion, seven hundred eleven billion, four hundred eighty-two million, eight hundred seventy-two thousand, one hundred ninety-two".
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