Search a number
-
+
38130797 = 53977417
BaseRepresentation
bin1001000101110…
…1010001101101
32122202020121202
42101131101231
534230141142
63441135245
7642051335
oct221352155
978666552
1038130797
111a584261
121092a525
137b90b03
1450c80c5
153533032
hex245d46d

38130797 has 8 divisors (see below), whose sum is σ = 39256056. Its totient is φ = 37020672.

The previous prime is 38130793. The next prime is 38130821. The reversal of 38130797 is 79703183.

It is a happy number.

38130797 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 14032516 + 24098281 = 3746^2 + 4909^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 38130797 - 22 = 38130793 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 38130797.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38130793) 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 7 ways as a sum of consecutive naturals, for example, 1433 + ... + 8849.

It is an arithmetic number, because the mean of its divisors is an integer number (4907007).

Almost surely, 238130797 is an apocalyptic number.

It is an amenable number.

38130797 is a deficient number, since it is larger than the sum of its proper divisors (1125259).

38130797 is an equidigital number, since it uses as much as digits as its factorization.

38130797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7567.

The product of its (nonzero) digits is 31752, while the sum is 38.

The square root of 38130797 is about 6175.0139271098. The cubic root of 38130797 is about 336.5828325500.

The spelling of 38130797 in words is "thirty-eight million, one hundred thirty thousand, seven hundred ninety-seven".

Divisors: 1 53 97 5141 7417 393101 719449 38130797