Base | Representation |
---|---|
bin | 10001110000010011110… |
… | …100111000011110111101 |
3 | 11022122022002200200211011 |
4 | 101300103310320132331 |
5 | 124442232423421023 |
6 | 2332301400555221 |
7 | 154102204201423 |
oct | 21602364703675 |
9 | 4278262620734 |
10 | 1220103342013 |
11 | 43049658a536 |
12 | 17856a182b11 |
13 | 8b09450635a |
14 | 430a6431113 |
15 | 21b0ea6b50d |
hex | 11c13d387bd |
1220103342013 has 4 divisors (see below), whose sum is σ = 1259461514368. Its totient is φ = 1180745169660.
The previous prime is 1220103341987. The next prime is 1220103342047. The reversal of 1220103342013 is 3102433010221.
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 de Polignac number, because none of the positive numbers 2k-1220103342013 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 (1220103342053) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19679086131 + ... + 19679086192.
It is an arithmetic number, because the mean of its divisors is an integer number (314865378592).
Almost surely, 21220103342013 is an apocalyptic number.
It is an amenable number.
1220103342013 is a deficient number, since it is larger than the sum of its proper divisors (39358172355).
1220103342013 is an equidigital number, since it uses as much as digits as its factorization.
1220103342013 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 39358172354.
The product of its (nonzero) digits is 864, while the sum is 22.
Adding to 1220103342013 its reverse (3102433010221), we get a palindrome (4322536352234).
The spelling of 1220103342013 in words is "one trillion, two hundred twenty billion, one hundred three million, three hundred forty-two thousand, thirteen".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.064 sec. • engine limits •