Base | Representation |
---|---|
bin | 1111100010110… |
… | …11110010100001 |
3 | 100002100222100011 |
4 | 13301123302201 |
5 | 231340240033 |
6 | 20534524521 |
7 | 3142243105 |
oct | 761336241 |
9 | 302328304 |
10 | 130399393 |
11 | 67674aa3 |
12 | 37806741 |
13 | 21028507 |
14 | 13465905 |
15 | b6abccd |
hex | 7c5bca1 |
130399393 has 4 divisors (see below), whose sum is σ = 133579908. Its totient is φ = 127218880.
The previous prime is 130399387. The next prime is 130399411. The reversal of 130399393 is 393993031.
It is a happy number.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 393993031 = 67 ⋅5880493.
It can be written as a sum of positive squares in 2 ways, for example, as 4443664 + 125955729 = 2108^2 + 11223^2 .
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-130399393 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (130399303) 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, 1590196 + ... + 1590277.
It is an arithmetic number, because the mean of its divisors is an integer number (33394977).
Almost surely, 2130399393 is an apocalyptic number.
It is an amenable number.
130399393 is a deficient number, since it is larger than the sum of its proper divisors (3180515).
130399393 is an equidigital number, since it uses as much as digits as its factorization.
130399393 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3180514.
The product of its (nonzero) digits is 59049, while the sum is 40.
The square root of 130399393 is about 11419.2553610119. The cubic root of 130399393 is about 507.0979520191.
The spelling of 130399393 in words is "one hundred thirty million, three hundred ninety-nine thousand, three hundred ninety-three".
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