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39050505 = 345137417
BaseRepresentation
bin1001010011110…
…1110100001001
32201110222020000
42110331310021
534444104010
63512553213
7652631604
oct224756411
981428200
1039050505
112005224a
12110b2809
138123610
14528733b
1536657c0
hex253dd09

39050505 has 40 divisors (see below), whose sum is σ = 75396552. Its totient is φ = 19222272.

The previous prime is 39050477. The next prime is 39050509. The reversal of 39050505 is 50505093.

39050505 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 3337929 + 35712576 = 1827^2 + 5976^2 .

It is not a de Polignac number, because 39050505 - 29 = 39049993 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (39050509) 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 in 39 ways as a sum of consecutive naturals, for example, 1557 + ... + 8973.

Almost surely, 239050505 is an apocalyptic number.

It is an amenable number.

39050505 is a deficient number, since it is larger than the sum of its proper divisors (36346047).

39050505 is a wasteful number, since it uses less digits than its factorization.

39050505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7447 (or 7438 counting only the distinct ones).

The product of its (nonzero) digits is 3375, while the sum is 27.

The square root of 39050505 is about 6249.0403263221. The cubic root of 39050505 is about 339.2674684503.

Adding to 39050505 its reverse (50505093), we get a palindrome (89555598).

The spelling of 39050505 in words is "thirty-nine million, fifty thousand, five hundred five".

Divisors: 1 3 5 9 13 15 27 39 45 65 81 117 135 195 351 405 585 1053 1755 5265 7417 22251 37085 66753 96421 111255 200259 289263 333765 482105 600777 867789 1001295 1446315 2603367 3003885 4338945 7810101 13016835 39050505