Base | Representation |
---|---|
bin | 111101000000000111… |
… | …0001001001011010011 |
3 | 110112010122000011222111 |
4 | 1322000032021023103 |
5 | 4121242023211011 |
6 | 140103005050151 |
7 | 12315210261610 |
oct | 1720016111323 |
9 | 415118004874 |
10 | 131000210131 |
11 | 5061422687a |
12 | 2147b856957 |
13 | c47918654b |
14 | 64aa26d507 |
15 | 361aa87121 |
hex | 1e803892d3 |
131000210131 has 8 divisors (see below), whose sum is σ = 149781291264. Its totient is φ = 112235820360.
The previous prime is 131000210123. The next prime is 131000210137. The reversal of 131000210131 is 131012000131.
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 131000210131 - 23 = 131000210123 is a prime.
It is a super-2 number, since 2×1310002101312 (a number of 23 digits) contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (131000210137) 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, 4156015 + ... + 4187416.
It is an arithmetic number, because the mean of its divisors is an integer number (18722661408).
Almost surely, 2131000210131 is an apocalyptic number.
131000210131 is a deficient number, since it is larger than the sum of its proper divisors (18781081133).
131000210131 is an equidigital number, since it uses as much as digits as its factorization.
131000210131 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 8345681.
The product of its (nonzero) digits is 18, while the sum is 13.
Adding to 131000210131 its reverse (131012000131), we get a palindrome (262012210262).
The spelling of 131000210131 in words is "one hundred thirty-one billion, two hundred ten thousand, one hundred thirty-one".
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