Base | Representation |
---|---|
bin | 11000011100011000… |
… | …11010010001011101 |
3 | 1020212120022022110202 |
4 | 30032030122101131 |
5 | 203333444130003 |
6 | 10010104113245 |
7 | 643125652625 |
oct | 141614322135 |
9 | 36776268422 |
10 | 13123036253 |
11 | 5624680408 |
12 | 2662a65825 |
13 | 1311a1c912 |
14 | 8c6c35885 |
15 | 51c157088 |
hex | 30e31a45d |
13123036253 has 8 divisors (see below), whose sum is σ = 13912968888. Its totient is φ = 12335102464.
The previous prime is 13123036229. The next prime is 13123036259. The reversal of 13123036253 is 35263032131.
It can be written as a sum of positive squares in 4 ways, for example, as 4181820889 + 8941215364 = 64667^2 + 94558^2 .
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 13123036253 - 210 = 13123035229 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 (13123036259) 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, 486176 + ... + 512457.
It is an arithmetic number, because the mean of its divisors is an integer number (1739121111).
Almost surely, 213123036253 is an apocalyptic number.
It is an amenable number.
13123036253 is a deficient number, since it is larger than the sum of its proper divisors (789932635).
13123036253 is an equidigital number, since it uses as much as digits as its factorization.
13123036253 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 999423.
The product of its (nonzero) digits is 9720, while the sum is 29.
Adding to 13123036253 its reverse (35263032131), we get a palindrome (48386068384).
The spelling of 13123036253 in words is "thirteen billion, one hundred twenty-three million, thirty-six thousand, two hundred fifty-three".
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