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38161065 = 353537207
BaseRepresentation
bin1001000110010…
…0101010101001
32122210210010210
42101210222221
534232123230
63441531333
7642235515
oct221445251
978723123
1038161065
111a5a4a78
1210943b49
137ba1817
1450d5145
15353beb0
hex2464aa9

38161065 has 16 divisors (see below), whose sum is σ = 61239168. Its totient is φ = 20292096.

The previous prime is 38161033. The next prime is 38161069. The reversal of 38161065 is 56016183.

It is not a de Polignac number, because 38161065 - 25 = 38161033 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (38161069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1692 + ... + 8898.

It is an arithmetic number, because the mean of its divisors is an integer number (3827448).

Almost surely, 238161065 is an apocalyptic number.

It is an amenable number.

38161065 is a deficient number, since it is larger than the sum of its proper divisors (23078103).

38161065 is a wasteful number, since it uses less digits than its factorization.

38161065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7568.

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 38161065 is about 6177.4642856110. The cubic root of 38161065 is about 336.6718681461.

The spelling of 38161065 in words is "thirty-eight million, one hundred sixty-one thousand, sixty-five".

Divisors: 1 3 5 15 353 1059 1765 5295 7207 21621 36035 108105 2544071 7632213 12720355 38161065