Base | Representation |
---|---|
bin | 110100100011100011111000… |
… | …001100011100011010011101 |
3 | 1010022101222020001011011122210 |
4 | 310203203320030130122131 |
5 | 220244013032221410323 |
6 | 2135333120442031033 |
7 | 66454316210651520 |
oct | 6443437014343235 |
9 | 1108358201134583 |
10 | 231142124013213 |
11 | 67715908162a56 |
12 | 21b10a857a8479 |
13 | 9bc87bb6037aa |
14 | 41114a4b82bb7 |
15 | 1bac80ca0d293 |
hex | d238f831c69d |
231142124013213 has 32 divisors (see below), whose sum is σ = 372937233265920. Its totient is φ = 124311050035200.
The previous prime is 231142124013173. The next prime is 231142124013217. The reversal of 231142124013213 is 312310421241132.
231142124013213 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is not a de Polignac number, because 231142124013213 - 213 = 231142124005021 is a prime.
It is a Curzon number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (231142124013217) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 67297153 + ... + 70648361.
It is an arithmetic number, because the mean of its divisors is an integer number (11654288539560).
Almost surely, 2231142124013213 is an apocalyptic number.
It is an amenable number.
231142124013213 is a deficient number, since it is larger than the sum of its proper divisors (141795109252707).
231142124013213 is a wasteful number, since it uses less digits than its factorization.
231142124013213 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3544437.
The product of its (nonzero) digits is 6912, while the sum is 30.
Adding to 231142124013213 its reverse (312310421241132), we get a palindrome (543452545254345).
The spelling of 231142124013213 in words is "two hundred thirty-one trillion, one hundred forty-two billion, one hundred twenty-four million, thirteen thousand, two hundred thirteen".
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