Base | Representation |
---|---|
bin | 1011111011110111000110… |
… | …0010101111110000111111 |
3 | 1201110112211112012021020120 |
4 | 2332331301202233300333 |
5 | 3210001431141220411 |
6 | 43524345312550023 |
7 | 2523051626502642 |
oct | 276756142576077 |
9 | 51415745167216 |
10 | 13123030023231 |
11 | 41aa49a371147 |
12 | 157b3b8252313 |
13 | 74265b83972b |
14 | 33522d94ba59 |
15 | 17b560662106 |
hex | bef718afc3f |
13123030023231 has 8 divisors (see below), whose sum is σ = 18526630621104. Its totient is φ = 8234058053760.
The previous prime is 13123030023223. The next prime is 13123030023239. The reversal of 13123030023231 is 13232003032131.
It is an interprime number because it is at equal distance from previous prime (13123030023223) and next prime (13123030023239).
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 13123030023231 - 23 = 13123030023223 is a prime.
It is a super-2 number, since 2×131230300232312 (a number of 27 digits) contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (13123030023239) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (29) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 128657157040 + ... + 128657157141.
It is an arithmetic number, because the mean of its divisors is an integer number (2315828827638).
Almost surely, 213123030023231 is an apocalyptic number.
13123030023231 is a deficient number, since it is larger than the sum of its proper divisors (5403600597873).
13123030023231 is a wasteful number, since it uses less digits than its factorization.
13123030023231 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 257314314201.
The product of its (nonzero) digits is 1944, while the sum is 24.
Adding to 13123030023231 its reverse (13232003032131), we get a palindrome (26355033055362).
The spelling of 13123030023231 in words is "thirteen trillion, one hundred twenty-three billion, thirty million, twenty-three thousand, two hundred thirty-one".
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