Base | Representation |
---|---|
bin | 1000010001100110… |
… | …1000000000111101 |
3 | 12201210210020111020 |
4 | 2010121220000331 |
5 | 14022123410023 |
6 | 1004230214353 |
7 | 106021552326 |
oct | 20431500075 |
9 | 5653706436 |
10 | 2221310013 |
11 | a3a9650aa |
12 | 51bab43b9 |
13 | 295283130 |
14 | 17102744d |
15 | d002ade3 |
hex | 8466803d |
2221310013 has 32 divisors (see below), whose sum is σ = 3380106240. Its totient is φ = 1287605760.
The previous prime is 2221310009. The next prime is 2221310017. The reversal of 2221310013 is 3100131222.
It is an interprime number because it is at equal distance from previous prime (2221310009) and next prime (2221310017).
It is not a de Polignac number, because 2221310013 - 22 = 2221310009 is a prime.
It is a Curzon number.
It is a junction number, because it is equal to n+sod(n) for n = 2221309974 and 2221310001.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2221310017) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22420 + ... + 70322.
It is an arithmetic number, because the mean of its divisors is an integer number (105628320).
Almost surely, 22221310013 is an apocalyptic number.
It is an amenable number.
2221310013 is a deficient number, since it is larger than the sum of its proper divisors (1158796227).
2221310013 is a wasteful number, since it uses less digits than its factorization.
2221310013 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 47989.
The product of its (nonzero) digits is 72, while the sum is 15.
The square root of 2221310013 is about 47130.7756460680. The cubic root of 2221310013 is about 1304.7772970333. Note that the first 3 decimals are identical.
Adding to 2221310013 its reverse (3100131222), we get a palindrome (5321441235).
The spelling of 2221310013 in words is "two billion, two hundred twenty-one million, three hundred ten thousand, thirteen".
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