Base | Representation |
---|---|
bin | 11101011000001011… |
… | …101111100001110101 |
3 | 10000102101001122100222 |
4 | 131120023233201311 |
5 | 1004100311304331 |
6 | 22254034344125 |
7 | 2164460436641 |
oct | 353013574165 |
9 | 100371048328 |
10 | 31544244341 |
11 | 124179a3725 |
12 | 614412b045 |
13 | 2c892a8a4c |
14 | 1753587c21 |
15 | c494b2b7b |
hex | 7582ef875 |
31544244341 has 4 divisors (see below), whose sum is σ = 31651904172. Its totient is φ = 31436584512.
The previous prime is 31544244337. The next prime is 31544244437. The reversal of 31544244341 is 14344244513.
It is a happy number.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 14344244513 = 17 ⋅843779089.
It can be written as a sum of positive squares in 2 ways, for example, as 28991872900 + 2552371441 = 170270^2 + 50521^2 .
It is a cyclic number.
It is not a de Polignac number, because 31544244341 - 22 = 31544244337 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 (31544244841) 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, 53829476 + ... + 53830061.
It is an arithmetic number, because the mean of its divisors is an integer number (7912976043).
Almost surely, 231544244341 is an apocalyptic number.
It is an amenable number.
31544244341 is a deficient number, since it is larger than the sum of its proper divisors (107659831).
31544244341 is a wasteful number, since it uses less digits than its factorization.
31544244341 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 107659830.
The product of its digits is 92160, while the sum is 35.
Adding to 31544244341 its reverse (14344244513), we get a palindrome (45888488854).
The spelling of 31544244341 in words is "thirty-one billion, five hundred forty-four million, two hundred forty-four thousand, three hundred forty-one".
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