Base | Representation |
---|---|
bin | 11101110010110000001010… |
… | …000011101011000011011111 |
3 | 122011221102222211201220112201 |
4 | 131302300022003223003133 |
5 | 114133303022414020221 |
6 | 1142402454042312331 |
7 | 36412452045466210 |
oct | 3562601203530337 |
9 | 564842884656481 |
10 | 131031031001311 |
11 | 38828a48034751 |
12 | 128428371b86a7 |
13 | 58162336b895c |
14 | 244dd1594b407 |
15 | 10236401e0891 |
hex | 772c0a0eb0df |
131031031001311 has 8 divisors (see below), whose sum is σ = 150533779820544. Its totient is φ = 111724289708280.
The previous prime is 131031031001239. The next prime is 131031031001323. The reversal of 131031031001311 is 113100130130131.
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 131031031001311 - 29 = 131031031000799 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (131031031001341) 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, 49001880115 + ... + 49001882788.
It is an arithmetic number, because the mean of its divisors is an integer number (18816722477568).
Almost surely, 2131031031001311 is an apocalyptic number.
131031031001311 is a deficient number, since it is larger than the sum of its proper divisors (19502748819233).
131031031001311 is an equidigital number, since it uses as much as digits as its factorization.
131031031001311 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 98003763101.
The product of its (nonzero) digits is 81, while the sum is 19.
Adding to 131031031001311 its reverse (113100130130131), we get a palindrome (244131161131442).
The spelling of 131031031001311 in words is "one hundred thirty-one trillion, thirty-one billion, thirty-one million, one thousand, three hundred eleven".
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