Base | Representation |
---|---|
bin | 10001111010100011011… |
… | …110100000011011011101 |
3 | 11100200200201002222121010 |
4 | 101322203132200123131 |
5 | 130132244423030023 |
6 | 2341321104525433 |
7 | 154641613434324 |
oct | 21724336403335 |
9 | 4320621088533 |
10 | 1231103330013 |
11 | 43512080a307 |
12 | 17a71a020879 |
13 | 8c1284283ab |
14 | 4382b2db0bb |
15 | 22055607093 |
hex | 11ea37a06dd |
1231103330013 has 8 divisors (see below), whose sum is σ = 1643215500576. Its totient is φ = 819863356400.
The previous prime is 1231103330011. The next prime is 1231103330059. The reversal of 1231103330013 is 3100333011321.
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 1231103330013 - 21 = 1231103330011 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1231103330011) 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, 218045943 + ... + 218051588.
It is an arithmetic number, because the mean of its divisors is an integer number (205401937572).
Almost surely, 21231103330013 is an apocalyptic number.
It is an amenable number.
1231103330013 is a deficient number, since it is larger than the sum of its proper divisors (412112170563).
1231103330013 is an equidigital number, since it uses as much as digits as its factorization.
1231103330013 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 436098475.
The product of its (nonzero) digits is 486, while the sum is 21.
Adding to 1231103330013 its reverse (3100333011321), we get a palindrome (4331436341334).
The spelling of 1231103330013 in words is "one trillion, two hundred thirty-one billion, one hundred three million, three hundred thirty thousand, thirteen".
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