Base | Representation |
---|---|
bin | 10001101000111110001… |
… | …001010101010000001101 |
3 | 11021212221221012201220021 |
4 | 101220332021111100031 |
5 | 124330113143124323 |
6 | 2324515430422141 |
7 | 153403011661303 |
oct | 21507611252015 |
9 | 4255857181807 |
10 | 1212223411213 |
11 | 428112570931 |
12 | 176b2b201951 |
13 | 8a409b127c9 |
14 | 42959aa0273 |
15 | 217ecd8c05d |
hex | 11a3e25540d |
1212223411213 has 8 divisors (see below), whose sum is σ = 1223575839360. Its totient is φ = 1200871413600.
The previous prime is 1212223411187. The next prime is 1212223411229. The reversal of 1212223411213 is 3121143222121.
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 1212223411213 - 213 = 1212223403021 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 (1212223451213) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9777153 + ... + 9900361.
It is an arithmetic number, because the mean of its divisors is an integer number (152946979920).
Almost surely, 21212223411213 is an apocalyptic number.
It is an amenable number.
1212223411213 is a deficient number, since it is larger than the sum of its proper divisors (11352428147).
1212223411213 is a wasteful number, since it uses less digits than its factorization.
1212223411213 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 215267.
The product of its digits is 1152, while the sum is 25.
Adding to 1212223411213 its reverse (3121143222121), we get a palindrome (4333366633334).
The spelling of 1212223411213 in words is "one trillion, two hundred twelve billion, two hundred twenty-three million, four hundred eleven thousand, two hundred thirteen".
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