Base | Representation |
---|---|
bin | 11011011100100… |
… | …00110111001101 |
3 | 121001012222020122 |
4 | 31232100313031 |
5 | 432414402001 |
6 | 34502354325 |
7 | 5463635603 |
oct | 1556206715 |
9 | 531188218 |
10 | 230231501 |
11 | 108a61375 |
12 | 6512b9a5 |
13 | 38910776 |
14 | 22811873 |
15 | 1532bb1b |
hex | db90dcd |
230231501 has 4 divisors (see below), whose sum is σ = 236454012. Its totient is φ = 224008992.
The previous prime is 230231473. The next prime is 230231539. The reversal of 230231501 is 105132032.
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 86471401 + 143760100 = 9299^2 + 11990^2 .
It is a cyclic number.
It is not a de Polignac number, because 230231501 - 226 = 163122637 is a prime.
It is a super-3 number, since 3×2302315013 (a number of 26 digits) contains 333 as substring.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 230231501.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (230231101) 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, 3111200 + ... + 3111273.
It is an arithmetic number, because the mean of its divisors is an integer number (59113503).
Almost surely, 2230231501 is an apocalyptic number.
It is an amenable number.
230231501 is a deficient number, since it is larger than the sum of its proper divisors (6222511).
230231501 is an equidigital number, since it uses as much as digits as its factorization.
230231501 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 6222510.
The product of its (nonzero) digits is 180, while the sum is 17.
The square root of 230231501 is about 15173.3813304748. The cubic root of 230231501 is about 612.8980622771.
Adding to 230231501 its reverse (105132032), we get a palindrome (335363533).
The spelling of 230231501 in words is "two hundred thirty million, two hundred thirty-one thousand, five hundred one".
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