Base | Representation |
---|---|
bin | 1001010001010… |
… | …1000001011101 |
3 | 2201011111000201 |
4 | 2110111001131 |
5 | 34423232141 |
6 | 3505223501 |
7 | 651334513 |
oct | 224250135 |
9 | 81144021 |
10 | 38883421 |
11 | 1aa48765 |
12 | 11031b91 |
13 | 8095555 |
14 | 52424b3 |
15 | 3631031 |
hex | 251505d |
38883421 has 2 divisors, whose sum is σ = 38883422. Its totient is φ = 38883420.
The previous prime is 38883407. The next prime is 38883431. The reversal of 38883421 is 12438883.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 33477796 + 5405625 = 5786^2 + 2325^2 .
It is a cyclic number.
It is not a de Polignac number, because 38883421 - 25 = 38883389 is a prime.
It is a Chen prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (38883401) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19441710 + 19441711.
It is an arithmetic number, because the mean of its divisors is an integer number (19441711).
Almost surely, 238883421 is an apocalyptic number.
It is an amenable number.
38883421 is a deficient number, since it is larger than the sum of its proper divisors (1).
38883421 is an equidigital number, since it uses as much as digits as its factorization.
38883421 is an odious number, because the sum of its binary digits is odd.
The product of its digits is 36864, while the sum is 37.
The square root of 38883421 is about 6235.6572227793. The cubic root of 38883421 is about 338.7829061683.
It can be divided in two parts, 38883 and 421, that added together give a cube (39304 = 343).
The spelling of 38883421 in words is "thirty-eight million, eight hundred eighty-three thousand, four hundred twenty-one".
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