Base | Representation |
---|---|
bin | 1111100011000… |
… | …01001100010111 |
3 | 100002102002200221 |
4 | 13301201030113 |
5 | 231341442102 |
6 | 20535215211 |
7 | 3142364455 |
oct | 761411427 |
9 | 302362627 |
10 | 130421527 |
11 | 6768a695 |
12 | 37817507 |
13 | 21035602 |
14 | 1346d9d5 |
15 | b6b3637 |
hex | 7c61317 |
130421527 has 2 divisors, whose sum is σ = 130421528. Its totient is φ = 130421526.
The previous prime is 130421503. The next prime is 130421531. The reversal of 130421527 is 725124031.
It is a happy number.
It is a strong prime.
It is an emirp because it is prime and its reverse (725124031) is a distict prime.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-130421527 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (130421227) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65210763 + 65210764.
It is an arithmetic number, because the mean of its divisors is an integer number (65210764).
Almost surely, 2130421527 is an apocalyptic number.
130421527 is a deficient number, since it is larger than the sum of its proper divisors (1).
130421527 is an equidigital number, since it uses as much as digits as its factorization.
130421527 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 1680, while the sum is 25.
The square root of 130421527 is about 11420.2244723998. The cubic root of 130421527 is about 507.1266420071.
Adding to 130421527 its reverse (725124031), we get a palindrome (855545558).
The spelling of 130421527 in words is "one hundred thirty million, four hundred twenty-one thousand, five hundred twenty-seven".
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