Search a number
-
+
38681768041 = 75525966863
BaseRepresentation
bin100100000001100111…
…001111000001101001
310200211210120102012121
4210001213033001221
51113210013034131
625434204311241
72536366413640
oct440147170151
9120753512177
1038681768041
111544a938944
1275b6542521
133855c32b57
141c2d4a2357
151015de4911
hex9019cf069

38681768041 has 4 divisors (see below), whose sum is σ = 44207734912. Its totient is φ = 33155801172.

The previous prime is 38681768029. The next prime is 38681768053. The reversal of 38681768041 is 14086718683.

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, and also an emirpimes, since its reverse is a distinct semiprime: 14086718683 = 31345005491.

It is an interprime number because it is at equal distance from previous prime (38681768029) and next prime (38681768053).

It is a cyclic number.

It is not a de Polignac number, because 38681768041 - 27 = 38681767913 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 38681768041.

It is not an unprimeable number, because it can be changed into a prime (38681768641) 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, 2762983425 + ... + 2762983438.

It is an arithmetic number, because the mean of its divisors is an integer number (11051933728).

Almost surely, 238681768041 is an apocalyptic number.

It is an amenable number.

38681768041 is a deficient number, since it is larger than the sum of its proper divisors (5525966871).

38681768041 is an equidigital number, since it uses as much as digits as its factorization.

38681768041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5525966870.

The product of its (nonzero) digits is 1548288, while the sum is 52.

The spelling of 38681768041 in words is "thirty-eight billion, six hundred eighty-one million, seven hundred sixty-eight thousand, forty-one".

Divisors: 1 7 5525966863 38681768041