Base | Representation |
---|---|
bin | 111001010100101110… |
… | …1010111000001111101 |
3 | 102202202012101011021022 |
4 | 1302221131113001331 |
5 | 4004103121132201 |
6 | 132315145513525 |
7 | 11615404562033 |
oct | 1625135270175 |
9 | 382665334238 |
10 | 123102130301 |
11 | 48230a41577 |
12 | 1ba367a28a5 |
13 | b7baaa9c27 |
14 | 5d5b336553 |
15 | 33074c041b |
hex | 1ca975707d |
123102130301 has 4 divisors (see below), whose sum is σ = 123103367100. Its totient is φ = 123100893504.
The previous prime is 123102130289. The next prime is 123102130309. The reversal of 123102130301 is 103031201321.
It is a semiprime because it is the product of two primes.
It can be written as a sum of positive squares in 2 ways, for example, as 46699642201 + 76402488100 = 216101^2 + 276410^2 .
It is a cyclic number.
It is not a de Polignac number, because 123102130301 - 222 = 123097935997 is a prime.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 123102130301.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (123102130309) 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, 454646 + ... + 672983.
It is an arithmetic number, because the mean of its divisors is an integer number (30775841775).
Almost surely, 2123102130301 is an apocalyptic number.
It is an amenable number.
123102130301 is a deficient number, since it is larger than the sum of its proper divisors (1236799).
123102130301 is a wasteful number, since it uses less digits than its factorization.
123102130301 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1236798.
The product of its (nonzero) digits is 108, while the sum is 17.
Adding to 123102130301 its reverse (103031201321), we get a palindrome (226133331622).
The spelling of 123102130301 in words is "one hundred twenty-three billion, one hundred two million, one hundred thirty thousand, three hundred one".
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