Base | Representation |
---|---|
bin | 1100100101000100101011… |
… | …1011001001101001110010 |
3 | 1210222020100202220201211200 |
4 | 3021101022323021221302 |
5 | 3303101443214310023 |
6 | 45225521502552030 |
7 | 2625155232534342 |
oct | 311211273115162 |
9 | 53866322821750 |
10 | 13831051713138 |
11 | 4452797132130 |
12 | 1674673298616 |
13 | 794354b7213a |
14 | 35b5d8364d22 |
15 | 18eb9da9b743 |
hex | c944aec9a72 |
13831051713138 has 48 divisors (see below), whose sum is σ = 32749031484000. Its totient is φ = 4183861803840.
The previous prime is 13831051713119. The next prime is 13831051713191. The reversal of 13831051713138 is 83131715013831.
13831051713138 is a `hidden beast` number, since 1 + 3 + 8 + 310 + 5 + 17 + 1 + 313 + 8 = 666.
It is a junction number, because it is equal to n+sod(n) for n = 13831051713093 and 13831051713102.
It is an unprimeable number.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 61270288 + ... + 61495611.
It is an arithmetic number, because the mean of its divisors is an integer number (682271489250).
Almost surely, 213831051713138 is an apocalyptic number.
13831051713138 is a gapful number since it is divisible by the number (18) formed by its first and last digit.
13831051713138 is an abundant number, since it is smaller than the sum of its proper divisors (18917979770862).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
13831051713138 is a wasteful number, since it uses less digits than its factorization.
13831051713138 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 122766487 (or 122766484 counting only the distinct ones).
The product of its (nonzero) digits is 181440, while the sum is 45.
Adding to 13831051713138 its reverse (83131715013831), we get a palindrome (96962766726969).
The spelling of 13831051713138 in words is "thirteen trillion, eight hundred thirty-one billion, fifty-one million, seven hundred thirteen thousand, one hundred thirty-eight".
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