Base | Representation |
---|---|
bin | 100001101101010001… |
… | …0101000010110101011 |
3 | 20220211201000012002221 |
4 | 1003122202220112223 |
5 | 2141221303104021 |
6 | 53130442534511 |
7 | 5141535513631 |
oct | 1033242502653 |
9 | 226751005087 |
10 | 72385988011 |
11 | 28776004197 |
12 | 12041b07437 |
13 | 6a9786858c |
14 | 3709869351 |
15 | 1d39d1a241 |
hex | 10da8a85ab |
72385988011 has 2 divisors, whose sum is σ = 72385988012. Its totient is φ = 72385988010.
The previous prime is 72385988009. The next prime is 72385988071. The reversal of 72385988011 is 11088958327.
It is a happy number.
It is a weak prime.
It is an emirp because it is prime and its reverse (11088958327) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 72385988011 - 21 = 72385988009 is a prime.
It is a super-2 number, since 2×723859880112 (a number of 23 digits) contains 22 as substring.
Together with 72385988009, it forms a pair of twin primes.
It is a self number, because there is not a number n which added to its sum of digits gives 72385988011.
It is not a weakly prime, because it can be changed into another prime (72385988071) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36192994005 + 36192994006.
It is an arithmetic number, because the mean of its divisors is an integer number (36192994006).
Almost surely, 272385988011 is an apocalyptic number.
72385988011 is a deficient number, since it is larger than the sum of its proper divisors (1).
72385988011 is an equidigital number, since it uses as much as digits as its factorization.
72385988011 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 967680, while the sum is 52.
The spelling of 72385988011 in words is "seventy-two billion, three hundred eighty-five million, nine hundred eighty-eight thousand, eleven".
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