Base | Representation |
---|---|
bin | 1001000101011011… |
… | …0100101110111001 |
3 | 20021221210202100021 |
4 | 2101112310232321 |
5 | 14443300220411 |
6 | 1041553210441 |
7 | 114301301500 |
oct | 22126645671 |
9 | 6257722307 |
10 | 2438679481 |
11 | 1041630a97 |
12 | 580860a21 |
13 | 2cb30c414 |
14 | 191c4b837 |
15 | e4166a71 |
hex | 915b4bb9 |
2438679481 has 6 divisors (see below), whose sum is σ = 2836831290. Its totient is φ = 2090296656.
The previous prime is 2438679473. The next prime is 2438679491. The reversal of 2438679481 is 1849768342.
It can be written as a sum of positive squares in only one way, i.e., 1717273600 + 721405881 = 41440^2 + 26859^2 .
It is not a de Polignac number, because 2438679481 - 23 = 2438679473 is a prime.
It is a super-2 number, since 2×24386794812 = 11894315222100858722, which contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (2438679421) 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 5 ways as a sum of consecutive naturals, for example, 24884436 + ... + 24884533.
It is an arithmetic number, because the mean of its divisors is an integer number (472805215).
Almost surely, 22438679481 is an apocalyptic number.
It is an amenable number.
2438679481 is a deficient number, since it is larger than the sum of its proper divisors (398151809).
2438679481 is an equidigital number, since it uses as much as digits as its factorization.
2438679481 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 49768983 (or 49768976 counting only the distinct ones).
The product of its digits is 2322432, while the sum is 52.
The square root of 2438679481 is about 49382.9877690688. The cubic root of 2438679481 is about 1346.0201914196.
The spelling of 2438679481 in words is "two billion, four hundred thirty-eight million, six hundred seventy-nine thousand, four hundred eighty-one".
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