Base | Representation |
---|---|
bin | 10001101000111101100… |
… | …110101000000111000101 |
3 | 11021212221022002112001201 |
4 | 101220331212220013011 |
5 | 124330103331012123 |
6 | 2324514503422501 |
7 | 153402541440145 |
oct | 21507546500705 |
9 | 4255838075051 |
10 | 1212214313413 |
11 | 428108417594 |
12 | 176b28154a31 |
13 | 8a407c787ac |
14 | 429587b2925 |
15 | 217ec1915ad |
hex | 11a3d9a81c5 |
1212214313413 has 4 divisors (see below), whose sum is σ = 1212635370240. Its totient is φ = 1211793256588.
The previous prime is 1212214313411. The next prime is 1212214313459. The reversal of 1212214313413 is 3143134122121.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.
It is a cyclic number.
It is not a de Polignac number, because 1212214313413 - 21 = 1212214313411 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 (1212214313411) 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 3 ways as a sum of consecutive naturals, for example, 210524095 + ... + 210529852.
It is an arithmetic number, because the mean of its divisors is an integer number (303158842560).
Almost surely, 21212214313413 is an apocalyptic number.
It is an amenable number.
1212214313413 is a deficient number, since it is larger than the sum of its proper divisors (421056827).
1212214313413 is an equidigital number, since it uses as much as digits as its factorization.
1212214313413 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 421056826.
The product of its digits is 3456, while the sum is 28.
Adding to 1212214313413 its reverse (3143134122121), we get a palindrome (4355348435534).
The spelling of 1212214313413 in words is "one trillion, two hundred twelve billion, two hundred fourteen million, three hundred thirteen thousand, four hundred thirteen".
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