Base | Representation |
---|---|
bin | 1100010011111010101… |
… | …1001110111001000000 |
3 | 202012221010211002010110 |
4 | 3010332223032321000 |
5 | 11431130224334310 |
6 | 241055232231320 |
7 | 21165201066141 |
oct | 3047653167100 |
9 | 665833732113 |
10 | 211504918080 |
11 | 81776015465 |
12 | 34ba869b540 |
13 | 16c38a31301 |
14 | a346067ac8 |
15 | 577d4edd20 |
hex | 313eacee40 |
211504918080 has 224 divisors, whose sum is σ = 697448724480. Its totient is φ = 54264985600.
The previous prime is 211504918063. The next prime is 211504918087. The reversal of 211504918080 is 80819405112.
211504918080 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is not an unprimeable number, because it can be changed into a prime (211504918087) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2622355 + ... + 2701805.
Almost surely, 2211504918080 is an apocalyptic number.
211504918080 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 211504918080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (348724362240).
211504918080 is an abundant number, since it is smaller than the sum of its proper divisors (485943806400).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
211504918080 is a wasteful number, since it uses less digits than its factorization.
211504918080 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 79577 (or 79567 counting only the distinct ones).
The product of its (nonzero) digits is 23040, while the sum is 39.
The spelling of 211504918080 in words is "two hundred eleven billion, five hundred four million, nine hundred eighteen thousand, eighty".
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