Base | Representation |
---|---|
bin | 1111100010111… |
… | …00111010110111 |
3 | 100002101012200122 |
4 | 13301130322313 |
5 | 231340412043 |
6 | 20535002155 |
7 | 3142262441 |
oct | 761347267 |
9 | 302335618 |
10 | 130404023 |
11 | 67678522 |
12 | 3780935b |
13 | 2102a659 |
14 | 13467491 |
15 | b6ad368 |
hex | 7c5ceb7 |
130404023 has 2 divisors, whose sum is σ = 130404024. Its totient is φ = 130404022.
The previous prime is 130404019. The next prime is 130404037. The reversal of 130404023 is 320404031.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 130404023 - 22 = 130404019 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 130403992 and 130404010.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (130404523) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65202011 + 65202012.
It is an arithmetic number, because the mean of its divisors is an integer number (65202012).
Almost surely, 2130404023 is an apocalyptic number.
130404023 is a deficient number, since it is larger than the sum of its proper divisors (1).
130404023 is an equidigital number, since it uses as much as digits as its factorization.
130404023 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 288, while the sum is 17.
The square root of 130404023 is about 11419.4580869672. The cubic root of 130404023 is about 507.1039536721.
Adding to 130404023 its reverse (320404031), we get a palindrome (450808054).
The spelling of 130404023 in words is "one hundred thirty million, four hundred four thousand, twenty-three".
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