Search a number
-
+
38163713 = 75451959
BaseRepresentation
bin1001000110010…
…1010100000001
32122210220202212
42101211110001
534232214323
63441551505
7642246320
oct221452401
978726685
1038163713
111a5a6a65
1210945595
137ba2aa3
1450d60b7
15353cb78
hex2465501

38163713 has 4 divisors (see below), whose sum is σ = 43615680. Its totient is φ = 32711748.

The previous prime is 38163703. The next prime is 38163721. The reversal of 38163713 is 31736183.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 38163713 - 210 = 38162689 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 38163713.

It is not an unprimeable number, because it can be changed into a prime (38163703) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2725973 + ... + 2725986.

It is an arithmetic number, because the mean of its divisors is an integer number (10903920).

Almost surely, 238163713 is an apocalyptic number.

It is an amenable number.

38163713 is a deficient number, since it is larger than the sum of its proper divisors (5451967).

38163713 is an equidigital number, since it uses as much as digits as its factorization.

38163713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5451966.

The product of its digits is 9072, while the sum is 32.

The square root of 38163713 is about 6177.6786093160. The cubic root of 38163713 is about 336.6796551971.

Adding to 38163713 its reverse (31736183), we get a palindrome (69899896).

The spelling of 38163713 in words is "thirty-eight million, one hundred sixty-three thousand, seven hundred thirteen".

Divisors: 1 7 5451959 38163713