Search a number
-
+
38461693 is a prime number
BaseRepresentation
bin1001001010111…
…0000011111101
32200101001112011
42102232003331
534321233233
63452211221
7644630134
oct222560375
980331464
1038461693
111a78a926
1210a69b11
137c785ca
14517291b
15359b0cd
hex24ae0fd

38461693 has 2 divisors, whose sum is σ = 38461694. Its totient is φ = 38461692.

The previous prime is 38461679. The next prime is 38461723. The reversal of 38461693 is 39616483.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30063289 + 8398404 = 5483^2 + 2898^2 .

It is an emirp because it is prime and its reverse (39616483) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 38461693 - 225 = 4907261 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38461673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19230846 + 19230847.

It is an arithmetic number, because the mean of its divisors is an integer number (19230847).

Almost surely, 238461693 is an apocalyptic number.

It is an amenable number.

38461693 is a deficient number, since it is larger than the sum of its proper divisors (1).

38461693 is an equidigital number, since it uses as much as digits as its factorization.

38461693 is an evil number, because the sum of its binary digits is even.

The product of its digits is 93312, while the sum is 40.

The square root of 38461693 is about 6201.7491887370. The cubic root of 38461693 is about 337.5536426852.

The spelling of 38461693 in words is "thirty-eight million, four hundred sixty-one thousand, six hundred ninety-three".