Base | Representation |
---|---|
bin | 1101011101101010101… |
… | …1111111000001111101 |
3 | 211010000211221201210111 |
4 | 3113122223333001331 |
5 | 12242201332331031 |
6 | 254131521310021 |
7 | 22465612342123 |
oct | 3273253770175 |
9 | 733024851714 |
10 | 231302230141 |
11 | 8a105095a94 |
12 | 389b2795311 |
13 | 18a72420348 |
14 | b2a346b913 |
15 | 603b57e1b1 |
hex | 35daaff07d |
231302230141 has 4 divisors (see below), whose sum is σ = 231303932892. Its totient is φ = 231300527392.
The previous prime is 231302230127. The next prime is 231302230147. The reversal of 231302230141 is 141032203132.
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 144058202500 + 87244027641 = 379550^2 + 295371^2 .
It is a cyclic number.
It is not a de Polignac number, because 231302230141 - 29 = 231302229629 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 (231302230147) 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, 628096 + ... + 925801.
It is an arithmetic number, because the mean of its divisors is an integer number (57825983223).
Almost surely, 2231302230141 is an apocalyptic number.
It is an amenable number.
231302230141 is a deficient number, since it is larger than the sum of its proper divisors (1702751).
231302230141 is a wasteful number, since it uses less digits than its factorization.
231302230141 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1702750.
The product of its (nonzero) digits is 864, while the sum is 22.
Adding to 231302230141 its reverse (141032203132), we get a palindrome (372334433273).
The spelling of 231302230141 in words is "two hundred thirty-one billion, three hundred two million, two hundred thirty thousand, one hundred forty-one".
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