Base | Representation |
---|---|
bin | 1111100100100… |
… | …00001010011011 |
3 | 100002202212121102 |
4 | 13302100022123 |
5 | 231414121130 |
6 | 20543302015 |
7 | 3144125405 |
oct | 762201233 |
9 | 302685542 |
10 | 130613915 |
11 | 67801193 |
12 | 378aa90b |
13 | 210a2053 |
14 | 134bdb75 |
15 | b700645 |
hex | 7c9029b |
130613915 has 4 divisors (see below), whose sum is σ = 156736704. Its totient is φ = 104491128.
The previous prime is 130613911. The next prime is 130613921. The reversal of 130613915 is 519316031.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is not a de Polignac number, because 130613915 - 22 = 130613911 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (130613911) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13061387 + ... + 13061396.
It is an arithmetic number, because the mean of its divisors is an integer number (39184176).
Almost surely, 2130613915 is an apocalyptic number.
130613915 is a deficient number, since it is larger than the sum of its proper divisors (26122789).
130613915 is an equidigital number, since it uses as much as digits as its factorization.
130613915 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 26122788.
The product of its (nonzero) digits is 2430, while the sum is 29.
The square root of 130613915 is about 11428.6444953021. The cubic root of 130613915 is about 507.3758778206.
Adding to 130613915 its reverse (519316031), we get a palindrome (649929946).
The spelling of 130613915 in words is "one hundred thirty million, six hundred thirteen thousand, nine hundred fifteen".
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