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38620039 = 172271767
BaseRepresentation
bin1001001101010…
…0101110000111
32200200002201211
42103110232013
534341320124
63455432251
7646156603
oct223245607
980602654
1038620039
111a888897
1210b25687
1380026c3
1451b4503
1535cce94
hex24d4b87

38620039 has 4 divisors (see below), whose sum is σ = 40891824. Its totient is φ = 36348256.

The previous prime is 38620031. The next prime is 38620051. The reversal of 38620039 is 93002683.

It is a happy number.

38620039 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 38620039 - 23 = 38620031 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38620031) 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, 1135867 + ... + 1135900.

It is an arithmetic number, because the mean of its divisors is an integer number (10222956).

Almost surely, 238620039 is an apocalyptic number.

38620039 is a deficient number, since it is larger than the sum of its proper divisors (2271785).

38620039 is a wasteful number, since it uses less digits than its factorization.

38620039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2271784.

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 38620039 is about 6214.5023131382. The cubic root of 38620039 is about 338.0162422315.

The spelling of 38620039 in words is "thirty-eight million, six hundred twenty thousand, thirty-nine".

Divisors: 1 17 2271767 38620039