Base | Representation |
---|---|
bin | 11101110101001110110110… |
… | …000101111110010001010001 |
3 | 122012112201210121121012000022 |
4 | 131311032312011332101101 |
5 | 114144101002234310001 |
6 | 1143013033431433225 |
7 | 36430663343614016 |
oct | 3565166605762121 |
9 | 565481717535008 |
10 | 131201421010001 |
11 | 38894234823151 |
12 | 1286b86a525815 |
13 | 58293193966c4 |
14 | 245827b30770d |
15 | 1027cb3dc911b |
hex | 7753b617e451 |
131201421010001 has 4 divisors (see below), whose sum is σ = 131203263564900. Its totient is φ = 131199578455104.
The previous prime is 131201421009983. The next prime is 131201421010003. The reversal of 131201421010001 is 100010124102131.
It is a semiprime because it is the product of two primes.
It can be written as a sum of positive squares in 2 ways, for example, as 41528551390225 + 89672869619776 = 6444265^2 + 9469576^2 .
It is a cyclic number.
It is not a de Polignac number, because 131201421010001 - 218 = 131201420747857 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (131201421010003) 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, 921170636 + ... + 921313053.
It is an arithmetic number, because the mean of its divisors is an integer number (32800815891225).
Almost surely, 2131201421010001 is an apocalyptic number.
It is an amenable number.
131201421010001 is a deficient number, since it is larger than the sum of its proper divisors (1842554899).
131201421010001 is an equidigital number, since it uses as much as digits as its factorization.
131201421010001 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1842554898.
The product of its (nonzero) digits is 48, while the sum is 17.
Adding to 131201421010001 its reverse (100010124102131), we get a palindrome (231211545112132).
The spelling of 131201421010001 in words is "one hundred thirty-one trillion, two hundred one billion, four hundred twenty-one million, ten thousand, one".
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