Base | Representation |
---|---|
bin | 111101001001010110… |
… | …1000111110101111111 |
3 | 110112221020112110011002 |
4 | 1322102231013311333 |
5 | 4122410420233043 |
6 | 140153443520515 |
7 | 12325664212160 |
oct | 1722255076577 |
9 | 415836473132 |
10 | 131310321023 |
11 | 50763286772 |
12 | 2154768913b |
13 | c4c84b450b |
14 | 64d9515767 |
15 | 3637de1bb8 |
hex | 1e92b47d7f |
131310321023 has 8 divisors (see below), whose sum is σ = 150072386592. Its totient is φ = 112549117536.
The previous prime is 131310321001. The next prime is 131310321029. The reversal of 131310321023 is 320123013131.
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 131310321023 - 28 = 131310320767 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 131310320986 and 131310321004.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (131310321029) 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, 152861 + ... + 534777.
It is an arithmetic number, because the mean of its divisors is an integer number (18759048324).
Almost surely, 2131310321023 is an apocalyptic number.
131310321023 is a deficient number, since it is larger than the sum of its proper divisors (18762065569).
131310321023 is an equidigital number, since it uses as much as digits as its factorization.
131310321023 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 431041.
The product of its (nonzero) digits is 324, while the sum is 20.
Adding to 131310321023 its reverse (320123013131), we get a palindrome (451433334154).
The spelling of 131310321023 in words is "one hundred thirty-one billion, three hundred ten million, three hundred twenty-one thousand, twenty-three".
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