Base | Representation |
---|---|
bin | 11011100011011… |
… | …11010000001101 |
3 | 121002221020210010 |
4 | 31301233100031 |
5 | 433133024123 |
6 | 34534103433 |
7 | 5504451405 |
oct | 1561572015 |
9 | 532836703 |
10 | 231142413 |
11 | 109523797 |
12 | 654aab79 |
13 | 38b6c278 |
14 | 229ab805 |
15 | 1545b993 |
hex | dc6f40d |
231142413 has 8 divisors (see below), whose sum is σ = 310617088. Its totient is φ = 152881344.
The previous prime is 231142411. The next prime is 231142423. The reversal of 231142413 is 314241132.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 231142413 - 21 = 231142411 is a prime.
It is a Duffinian number.
It is a Curzon number.
It is a self number, because there is not a number n which added to its sum of digits gives 231142413.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (231142411) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 302956 + ... + 303717.
It is an arithmetic number, because the mean of its divisors is an integer number (38827136).
Almost surely, 2231142413 is an apocalyptic number.
It is an amenable number.
231142413 is a deficient number, since it is larger than the sum of its proper divisors (79474675).
231142413 is a wasteful number, since it uses less digits than its factorization.
231142413 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 606803.
The product of its digits is 576, while the sum is 21.
The square root of 231142413 is about 15203.3684754399. The cubic root of 231142413 is about 613.7053099256.
Adding to 231142413 its reverse (314241132), we get a palindrome (545383545).
The spelling of 231142413 in words is "two hundred thirty-one million, one hundred forty-two thousand, four hundred thirteen".
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