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39530669 is a prime number
BaseRepresentation
bin1001011011001…
…1000010101101
32202101100212212
42112303002231
540104440134
63531140205
7660001523
oct226630255
982340785
1039530669
112034aa82
12112a4665
138261039
145370313
15370cbce
hex25b30ad

39530669 has 2 divisors, whose sum is σ = 39530670. Its totient is φ = 39530668.

The previous prime is 39530657. The next prime is 39530719. The reversal of 39530669 is 96603593.

39530669 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 37393225 + 2137444 = 6115^2 + 1462^2 .

It is an emirp because it is prime and its reverse (96603593) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 39530669 - 24 = 39530653 is a prime.

It is a super-2 number, since 2×395306692 = 3125347583175122, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (39530609) 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 as a sum of consecutive naturals, namely, 19765334 + 19765335.

It is an arithmetic number, because the mean of its divisors is an integer number (19765335).

Almost surely, 239530669 is an apocalyptic number.

It is an amenable number.

39530669 is a deficient number, since it is larger than the sum of its proper divisors (1).

39530669 is an equidigital number, since it uses as much as digits as its factorization.

39530669 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 131220, while the sum is 41.

The square root of 39530669 is about 6287.3419662048. The cubic root of 39530669 is about 340.6523490540.

The spelling of 39530669 in words is "thirty-nine million, five hundred thirty thousand, six hundred sixty-nine".