Search a number
-
+
38765413 = 331311701
BaseRepresentation
bin1001001111100…
…0001101100101
32200221111011001
42103320031211
534410443123
63502513301
7650333461
oct223701545
980844131
1038765413
111a978035
1210b95831
13805391b
1452114a1
15360b0ad
hex24f8365

38765413 has 4 divisors (see below), whose sum is σ = 38780428. Its totient is φ = 38750400.

The previous prime is 38765393. The next prime is 38765437. The reversal of 38765413 is 31456783.

38765413 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 can be written as a sum of positive squares in 2 ways, for example, as 33373729 + 5391684 = 5777^2 + 2322^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-38765413 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 (38765443) 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, 2538 + ... + 9163.

It is an arithmetic number, because the mean of its divisors is an integer number (9695107).

Almost surely, 238765413 is an apocalyptic number.

It is an amenable number.

38765413 is a deficient number, since it is larger than the sum of its proper divisors (15015).

38765413 is a wasteful number, since it uses less digits than its factorization.

38765413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15014.

The product of its digits is 60480, while the sum is 37.

The square root of 38765413 is about 6226.1876778652. The cubic root of 38765413 is about 338.4398327373.

The spelling of 38765413 in words is "thirty-eight million, seven hundred sixty-five thousand, four hundred thirteen".

Divisors: 1 3313 11701 38765413