Search a number
-
+
38161357 = 138293541
BaseRepresentation
bin1001000110010…
…0101111001101
32122210210112121
42101210233031
534232130412
63441532541
7642236413
oct221445715
978723477
1038161357
111a5a5213
1210944151
137ba19b0
1450d52b3
15353c107
hex2464bcd

38161357 has 8 divisors (see below), whose sum is σ = 41158040. Its totient is φ = 35173440.

The previous prime is 38161351. The next prime is 38161363. The reversal of 38161357 is 75316183.

38161357 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (38161351) and next prime (38161363).

It can be written as a sum of positive squares in 4 ways, for example, as 1425636 + 36735721 = 1194^2 + 6061^2 .

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 38161357 - 223 = 29772749 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38161351) 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, 9007 + ... + 12547.

It is an arithmetic number, because the mean of its divisors is an integer number (5144755).

Almost surely, 238161357 is an apocalyptic number.

It is an amenable number.

38161357 is a deficient number, since it is larger than the sum of its proper divisors (2996683).

38161357 is a wasteful number, since it uses less digits than its factorization.

38161357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4383.

The product of its digits is 15120, while the sum is 34.

The square root of 38161357 is about 6177.4879198587. The cubic root of 38161357 is about 336.6727268567.

The spelling of 38161357 in words is "thirty-eight million, one hundred sixty-one thousand, three hundred fifty-seven".

Divisors: 1 13 829 3541 10777 46033 2935489 38161357