Base | Representation |
---|---|
bin | 1111100010001… |
… | …00100000010111 |
3 | 100002012010111221 |
4 | 13301010200113 |
5 | 231324212043 |
6 | 20532511211 |
7 | 3141365053 |
oct | 761044027 |
9 | 302163457 |
10 | 130304023 |
11 | 6760a383 |
12 | 3777b507 |
13 | 20cc3c95 |
14 | 1343cc63 |
15 | b68d8ed |
hex | 7c44817 |
130304023 has 4 divisors (see below), whose sum is σ = 130538520. Its totient is φ = 130069528.
The previous prime is 130304017. The next prime is 130304063. The reversal of 130304023 is 320403031.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 320403031 = 13 ⋅24646387.
It is a cyclic number.
It is not a de Polignac number, because 130304023 - 217 = 130172951 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 130303988 and 130304006.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (130304063) 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, 116413 + ... + 117526.
It is an arithmetic number, because the mean of its divisors is an integer number (32634630).
Almost surely, 2130304023 is an apocalyptic number.
130304023 is a deficient number, since it is larger than the sum of its proper divisors (234497).
130304023 is an equidigital number, since it uses as much as digits as its factorization.
130304023 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 234496.
The product of its (nonzero) digits is 216, while the sum is 16.
The square root of 130304023 is about 11415.0787557511. The cubic root of 130304023 is about 506.9742967231.
Adding to 130304023 its reverse (320403031), we get a palindrome (450707054).
The spelling of 130304023 in words is "one hundred thirty million, three hundred four thousand, twenty-three".
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