Base | Representation |
---|---|
bin | 11011100010100… |
… | …10011000000010 |
3 | 121002201020112021 |
4 | 31301102120002 |
5 | 433120233010 |
6 | 34531352054 |
7 | 5503446511 |
oct | 1561223002 |
9 | 532636467 |
10 | 231024130 |
11 | 109452937 |
12 | 6545262a |
13 | 38b2a48c |
14 | 2297a678 |
15 | 154368da |
hex | dc52602 |
231024130 has 8 divisors (see below), whose sum is σ = 415843452. Its totient is φ = 92409648.
The previous prime is 231024091. The next prime is 231024137. The reversal of 231024130 is 31420132.
It is a happy number.
231024130 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.
It can be written as a sum of positive squares in 2 ways, for example, as 215884249 + 15139881 = 14693^2 + 3891^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is not an unprimeable number, because it can be changed into a prime (231024137) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11551197 + ... + 11551216.
Almost surely, 2231024130 is an apocalyptic number.
231024130 is a deficient number, since it is larger than the sum of its proper divisors (184819322).
231024130 is a wasteful number, since it uses less digits than its factorization.
231024130 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 23102420.
The product of its (nonzero) digits is 144, while the sum is 16.
The square root of 231024130 is about 15199.4779515614. The cubic root of 231024130 is about 613.6006078214.
Adding to 231024130 its reverse (31420132), we get a palindrome (262444262).
The spelling of 231024130 in words is "two hundred thirty-one million, twenty-four thousand, one hundred thirty".
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