Base | Representation |
---|---|
bin | 10010000110110110110… |
… | …111000000100110001101 |
3 | 11101221210100020012101111 |
4 | 102012312313000212031 |
5 | 130341323214002341 |
6 | 2351344003012021 |
7 | 155620150401562 |
oct | 22066667004615 |
9 | 4357710205344 |
10 | 1244313422221 |
11 | 43a78a540091 |
12 | 1811a606a011 |
13 | 904521a8bbc |
14 | 44321914869 |
15 | 2257a208681 |
hex | 121b6dc098d |
1244313422221 has 8 divisors (see below), whose sum is σ = 1273534526880. Its totient is φ = 1215105207792.
The previous prime is 1244313422159. The next prime is 1244313422239. The reversal of 1244313422221 is 1222243134421.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 1244313422221 - 29 = 1244313421709 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1244313422251) 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, 3027091 + ... + 3413488.
It is an arithmetic number, because the mean of its divisors is an integer number (159191815860).
Almost surely, 21244313422221 is an apocalyptic number.
It is an amenable number.
1244313422221 is a deficient number, since it is larger than the sum of its proper divisors (29221104659).
1244313422221 is an equidigital number, since it uses as much as digits as its factorization.
1244313422221 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 6445115.
The product of its digits is 18432, while the sum is 31.
Adding to 1244313422221 its reverse (1222243134421), we get a palindrome (2466556556642).
The spelling of 1244313422221 in words is "one trillion, two hundred forty-four billion, three hundred thirteen million, four hundred twenty-two thousand, two hundred twenty-one".
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