Base | Representation |
---|---|
bin | 111001010101000011… |
… | …0110100110100011101 |
3 | 102202202221211101222221 |
4 | 1302222012310310131 |
5 | 4004113412001341 |
6 | 132320214505341 |
7 | 11615566143541 |
oct | 1625206646435 |
9 | 382687741887 |
10 | 123113000221 |
11 | 48237096282 |
12 | 1ba3a365251 |
13 | b7c0114733 |
14 | 5d5c965a21 |
15 | 330841aed1 |
hex | 1caa1b4d1d |
123113000221 has 8 divisors (see below), whose sum is σ = 123594698304. Its totient is φ = 122631405600.
The previous prime is 123113000183. The next prime is 123113000273. The reversal of 123113000221 is 122000311321.
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 123113000221 - 27 = 123113000093 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 123113000195 and 123113000204.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (123113004221) 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 7 ways as a sum of consecutive naturals, for example, 3083830 + ... + 3123496.
It is an arithmetic number, because the mean of its divisors is an integer number (15449337288).
Almost surely, 2123113000221 is an apocalyptic number.
It is an amenable number.
123113000221 is a deficient number, since it is larger than the sum of its proper divisors (481698083).
123113000221 is a wasteful number, since it uses less digits than its factorization.
123113000221 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 51731.
The product of its (nonzero) digits is 72, while the sum is 16.
Adding to 123113000221 its reverse (122000311321), we get a palindrome (245113311542).
The spelling of 123113000221 in words is "one hundred twenty-three billion, one hundred thirteen million, two hundred twenty-one", and thus it is an aban number.
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