Base | Representation |
---|---|
bin | 11101010010000010… |
… | …000011001111010101 |
3 | 10000011011212100002121 |
4 | 131102002003033111 |
5 | 1003342401242331 |
6 | 22235510335541 |
7 | 2162065301434 |
oct | 352202031725 |
9 | 100134770077 |
10 | 31441040341 |
11 | 12374713a67 |
12 | 611565a5b1 |
13 | 2c70ab2aa9 |
14 | 17439a111b |
15 | c403c8c11 |
hex | 7520833d5 |
31441040341 has 4 divisors (see below), whose sum is σ = 31449823884. Its totient is φ = 31432256800.
The previous prime is 31441040311. The next prime is 31441040347. The reversal of 31441040341 is 14304014413.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 14304014413 = 13 ⋅1100308801.
It can be written as a sum of positive squares in 2 ways, for example, as 29705901316 + 1735139025 = 172354^2 + 41655^2 .
It is a cyclic number.
It is not a de Polignac number, because 31441040341 - 29 = 31441039829 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 (31441040347) 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, 4386400 + ... + 4393561.
It is an arithmetic number, because the mean of its divisors is an integer number (7862455971).
Almost surely, 231441040341 is an apocalyptic number.
It is an amenable number.
31441040341 is a deficient number, since it is larger than the sum of its proper divisors (8783543).
31441040341 is an equidigital number, since it uses as much as digits as its factorization.
31441040341 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 8783542.
The product of its (nonzero) digits is 2304, while the sum is 25.
Adding to 31441040341 its reverse (14304014413), we get a palindrome (45745054754).
The spelling of 31441040341 in words is "thirty-one billion, four hundred forty-one million, forty thousand, three hundred forty-one".
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