Base | Representation |
---|---|
bin | 1111100010001… |
… | …00100110100111 |
3 | 100002012011001202 |
4 | 13301010212213 |
5 | 231324220143 |
6 | 20532513115 |
7 | 3141366164 |
oct | 761044647 |
9 | 302164052 |
10 | 130304423 |
11 | 6760a707 |
12 | 3777b79b |
13 | 20cc4212 |
14 | 1343d06b |
15 | b68dab8 |
hex | 7c449a7 |
130304423 has 4 divisors (see below), whose sum is σ = 130410000. Its totient is φ = 130198848.
The previous prime is 130304411. The next prime is 130304429. The reversal of 130304423 is 324403031.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 324403031 = 4751 ⋅68281.
It is a cyclic number.
It is not a de Polignac number, because 130304423 - 210 = 130303399 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 130304395 and 130304404.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (130304429) 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, 50915 + ... + 53412.
It is an arithmetic number, because the mean of its divisors is an integer number (32602500).
Almost surely, 2130304423 is an apocalyptic number.
130304423 is a deficient number, since it is larger than the sum of its proper divisors (105577).
130304423 is a wasteful number, since it uses less digits than its factorization.
130304423 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 105576.
The product of its (nonzero) digits is 864, while the sum is 20.
The square root of 130304423 is about 11415.0962764227. The cubic root of 130304423 is about 506.9748154830.
Adding to 130304423 its reverse (324403031), we get a palindrome (454707454).
The spelling of 130304423 in words is "one hundred thirty million, three hundred four thousand, four hundred twenty-three".
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