Base | Representation |
---|---|
bin | 1111100010011… |
… | …10010111100111 |
3 | 100002021011221020 |
4 | 13301032113213 |
5 | 231332010143 |
6 | 20533422223 |
7 | 3141623616 |
oct | 761162747 |
9 | 302234836 |
10 | 130344423 |
11 | 67637770 |
12 | 3779a973 |
13 | 210094a1 |
14 | 1344d87d |
15 | b69a883 |
hex | 7c4e5e7 |
130344423 has 32 divisors (see below), whose sum is σ = 201699072. Its totient is φ = 73996800.
The previous prime is 130344421. The next prime is 130344463. The reversal of 130344423 is 324443031.
It is not a de Polignac number, because 130344423 - 21 = 130344421 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 130344393 and 130344402.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (130344421) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 158353 + ... + 159173.
It is an arithmetic number, because the mean of its divisors is an integer number (6303096).
Almost surely, 2130344423 is an apocalyptic number.
130344423 is a deficient number, since it is larger than the sum of its proper divisors (71354649).
130344423 is a wasteful number, since it uses less digits than its factorization.
130344423 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1135.
The product of its (nonzero) digits is 3456, while the sum is 24.
The square root of 130344423 is about 11416.8482078024. The cubic root of 130344423 is about 507.0266861141.
Adding to 130344423 its reverse (324443031), we get a palindrome (454787454).
The spelling of 130344423 in words is "one hundred thirty million, three hundred forty-four thousand, four hundred twenty-three".
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