Search a number
-
+
38390801 = 41936361
BaseRepresentation
bin1001001001110…
…0110000010001
32200020110021112
42102130300101
534312001201
63450503105
7644213351
oct222346021
980213245
1038390801
111a741639
1210a34a95
137c52267
145154b61
1535850bb
hex249cc11

38390801 has 4 divisors (see below), whose sum is σ = 39327204. Its totient is φ = 37454400.

The previous prime is 38390797. The next prime is 38390813. The reversal of 38390801 is 10809383.

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 17230801 + 21160000 = 4151^2 + 4600^2 .

It is a cyclic number.

It is not a de Polignac number, because 38390801 - 22 = 38390797 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38390831) 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, 468140 + ... + 468221.

It is an arithmetic number, because the mean of its divisors is an integer number (9831801).

Almost surely, 238390801 is an apocalyptic number.

It is an amenable number.

38390801 is a deficient number, since it is larger than the sum of its proper divisors (936403).

38390801 is an equidigital number, since it uses as much as digits as its factorization.

38390801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 936402.

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 38390801 is about 6196.0310683534. The cubic root of 38390801 is about 337.3461239099.

The spelling of 38390801 in words is "thirty-eight million, three hundred ninety thousand, eight hundred one".

Divisors: 1 41 936361 38390801