Base | Representation |
---|---|
bin | 101010110111001… |
… | …1010011100101001 |
3 | 10201020021200002101 |
4 | 1111232122130221 |
5 | 10421141332223 |
6 | 354414133401 |
7 | 50432520202 |
oct | 12556323451 |
9 | 3636250071 |
10 | 1438230313 |
11 | 6789307a3 |
12 | 3417b1261 |
13 | 19bc75970 |
14 | d90245a9 |
15 | 863e74ad |
hex | 55b9a729 |
1438230313 has 16 divisors (see below), whose sum is σ = 1598123520. Its totient is φ = 1286011584.
The previous prime is 1438230307. The next prime is 1438230317. The reversal of 1438230313 is 3130328341.
It is not a de Polignac number, because 1438230313 - 25 = 1438230281 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (1438230317) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41220 + ... + 67642.
It is an arithmetic number, because the mean of its divisors is an integer number (99882720).
Almost surely, 21438230313 is an apocalyptic number.
1438230313 is a gapful number since it is divisible by the number (13) formed by its first and last digit.
It is an amenable number.
1438230313 is a deficient number, since it is larger than the sum of its proper divisors (159893207).
1438230313 is a wasteful number, since it uses less digits than its factorization.
1438230313 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 26568.
The product of its (nonzero) digits is 5184, while the sum is 28.
The square root of 1438230313 is about 37924.0070799487. The cubic root of 1438230313 is about 1128.7804507964.
Adding to 1438230313 its reverse (3130328341), we get a palindrome (4568558654).
The spelling of 1438230313 in words is "one billion, four hundred thirty-eight million, two hundred thirty thousand, three hundred thirteen".
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