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39830113 = 47898317
BaseRepresentation
bin1001011111110…
…0001001100001
32202221120122101
42113330021201
540144030423
63541410401
7662356531
oct227741141
982846571
1039830113
1120534a54
1211409a01
13833741b
14540b4c1
15376b7ad
hex25fc261

39830113 has 4 divisors (see below), whose sum is σ = 39843220. Its totient is φ = 39817008.

The previous prime is 39830069. The next prime is 39830129. The reversal of 39830113 is 31103893.

39830113 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is the 2577-th star number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 22591009 + 17239104 = 4753^2 + 4152^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-39830113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (39830173) 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 3 ways as a sum of consecutive naturals, for example, 631 + ... + 8947.

It is an arithmetic number, because the mean of its divisors is an integer number (9960805).

Almost surely, 239830113 is an apocalyptic number.

It is an amenable number.

39830113 is a deficient number, since it is larger than the sum of its proper divisors (13107).

39830113 is an equidigital number, since it uses as much as digits as its factorization.

39830113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13106.

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 39830113 is about 6311.1102826682. The cubic root of 39830113 is about 341.5103311208.

The spelling of 39830113 in words is "thirty-nine million, eight hundred thirty thousand, one hundred thirteen".

Divisors: 1 4789 8317 39830113