Base | Representation |
---|---|
bin | 11011111111110010000011… |
… | …000011101011000110101101 |
3 | 121010222010212210102020000220 |
4 | 123333302003003223012231 |
5 | 112114331344213020023 |
6 | 1113513142204241553 |
7 | 34635605100425142 |
oct | 3377620303530655 |
9 | 533863783366026 |
10 | 123130321220013 |
11 | 362623043673a8 |
12 | 119875935402b9 |
13 | 53921a754b9c3 |
14 | 2259779d6a3c9 |
15 | e37d8000e3e3 |
hex | 6ffc830eb1ad |
123130321220013 has 8 divisors (see below), whose sum is σ = 164173829786208. Its totient is φ = 82086846733584.
The previous prime is 123130321219979. The next prime is 123130321220021. The reversal of 123130321220013 is 310022123031321.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 123130321220013 - 220 = 123130320171437 is a prime.
It is a super-2 number, since 2×1231303212200132 (a number of 29 digits) contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (123130321220083) 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, 1641831 + ... + 15778347.
It is an arithmetic number, because the mean of its divisors is an integer number (20521728723276).
Almost surely, 2123130321220013 is an apocalyptic number.
It is an amenable number.
123130321220013 is a deficient number, since it is larger than the sum of its proper divisors (41043508566195).
123130321220013 is a wasteful number, since it uses less digits than its factorization.
123130321220013 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 17039883.
The product of its (nonzero) digits is 1296, while the sum is 24.
Adding to 123130321220013 its reverse (310022123031321), we get a palindrome (433152444251334).
The spelling of 123130321220013 in words is "one hundred twenty-three trillion, one hundred thirty billion, three hundred twenty-one million, two hundred twenty thousand, thirteen".
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