Base | Representation |
---|---|
bin | 1100110111010010110… |
… | …1001000111101001000 |
3 | 210010102221222101201201 |
4 | 3031310231020331020 |
5 | 12110102314303222 |
6 | 245305425153544 |
7 | 21652422146641 |
oct | 3156455107510 |
9 | 703387871651 |
10 | 221001322312 |
11 | 857a9537521 |
12 | 369b8a8b8b4 |
13 | 17ac02a7b04 |
14 | a9a737a6c8 |
15 | 5b37083427 |
hex | 3374b48f48 |
221001322312 has 32 divisors (see below), whose sum is σ = 432936705600. Its totient is φ = 105563596864.
The previous prime is 221001322253. The next prime is 221001322313. The reversal of 221001322312 is 213223100122.
221001322312 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a self number, because there is not a number n which added to its sum of digits gives 221001322312.
It is not an unprimeable number, because it can be changed into a prime (221001322313) 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 7 ways as a sum of consecutive naturals, for example, 606862 + ... + 900157.
It is an arithmetic number, because the mean of its divisors is an integer number (13529272050).
Almost surely, 2221001322312 is an apocalyptic number.
It is an amenable number.
221001322312 is a deficient number, since it is larger than the sum of its proper divisors (211935383288).
221001322312 is a wasteful number, since it uses less digits than its factorization.
221001322312 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1507845 (or 1507841 counting only the distinct ones).
The product of its (nonzero) digits is 288, while the sum is 19.
Adding to 221001322312 its reverse (213223100122), we get a palindrome (434224422434).
The spelling of 221001322312 in words is "two hundred twenty-one billion, one million, three hundred twenty-two thousand, three hundred twelve".
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