Base | Representation |
---|---|
bin | 111101000110001010… |
… | …0011111110001010011 |
3 | 110112122202222020122201 |
4 | 1322030110133301103 |
5 | 4122201004432011 |
6 | 140135055544031 |
7 | 12323223550201 |
oct | 1721424376123 |
9 | 415582866581 |
10 | 131203202131 |
11 | 50708872761 |
12 | 2151782b017 |
13 | c4ac24a661 |
14 | 64c91d0071 |
15 | 362d7d2cc1 |
hex | 1e8c51fc53 |
131203202131 has 8 divisors (see below), whose sum is σ = 132162030000. Its totient is φ = 130244587680.
The previous prime is 131203202113. The next prime is 131203202161. The reversal of 131203202131 is 131202302131.
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 131203202131 - 25 = 131203202099 is a prime.
It is a super-2 number, since 2×1312032021312 (a number of 23 digits) contains 22 as substring.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 131203202099 and 131203202108.
It is not an unprimeable number, because it can be changed into a prime (131203202111) 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, 1306701 + ... + 1403521.
It is an arithmetic number, because the mean of its divisors is an integer number (16520253750).
Almost surely, 2131203202131 is an apocalyptic number.
131203202131 is a deficient number, since it is larger than the sum of its proper divisors (958827869).
131203202131 is an equidigital number, since it uses as much as digits as its factorization.
131203202131 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 106709.
The product of its (nonzero) digits is 216, while the sum is 19.
Adding to 131203202131 its reverse (131202302131), we get a palindrome (262405504262).
The spelling of 131203202131 in words is "one hundred thirty-one billion, two hundred three million, two hundred two thousand, one hundred thirty-one".
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