Base | Representation |
---|---|
bin | 111101001001011010… |
… | …0101011000001100011 |
3 | 110112221101020222222101 |
4 | 1322102310223001203 |
5 | 4122411422101011 |
6 | 140153554151231 |
7 | 12326020064155 |
oct | 1722264530143 |
9 | 415841228871 |
10 | 131312300131 |
11 | 507644086a1 |
12 | 21548282517 |
13 | c4c8a2829c |
14 | 64d98acad5 |
15 | 36381832c1 |
hex | 1e92d2b063 |
131312300131 has 4 divisors (see below), whose sum is σ = 131317144600. Its totient is φ = 131307455664.
The previous prime is 131312300123. The next prime is 131312300137. The reversal of 131312300131 is 131003213131.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is not a de Polignac number, because 131312300131 - 23 = 131312300123 is a prime.
It is a super-2 number, since 2×1313123001312 (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 = 131312300099 and 131312300108.
It is not an unprimeable number, because it can be changed into a prime (131312300137) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2381346 + ... + 2435863.
It is an arithmetic number, because the mean of its divisors is an integer number (32829286150).
Almost surely, 2131312300131 is an apocalyptic number.
131312300131 is a deficient number, since it is larger than the sum of its proper divisors (4844469).
131312300131 is an equidigital number, since it uses as much as digits as its factorization.
131312300131 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4844468.
The product of its (nonzero) digits is 162, while the sum is 19.
Adding to 131312300131 its reverse (131003213131), we get a palindrome (262315513262).
The spelling of 131312300131 in words is "one hundred thirty-one billion, three hundred twelve million, three hundred thousand, one hundred thirty-one".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.069 sec. • engine limits •