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38385569 is a prime number
BaseRepresentation
bin1001001001101…
…1011110100001
32200020012002202
42102123132201
534311314234
63450422545
7644162165
oct222333641
980205082
1038385569
111a738712
1210a31a55
137c4ca71
145152ca5
15358377e
hex249b7a1

38385569 has 2 divisors, whose sum is σ = 38385570. Its totient is φ = 38385568.

The previous prime is 38385563. The next prime is 38385583. The reversal of 38385569 is 96558383.

It is a happy number.

38385569 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 37149025 + 1236544 = 6095^2 + 1112^2 .

It is a cyclic number.

It is not a de Polignac number, because 38385569 - 28 = 38385313 is a prime.

It is a super-2 number, since 2×383855692 = 2946903814907522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (38385563) 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 as a sum of consecutive naturals, namely, 19192784 + 19192785.

It is an arithmetic number, because the mean of its divisors is an integer number (19192785).

Almost surely, 238385569 is an apocalyptic number.

It is an amenable number.

38385569 is a deficient number, since it is larger than the sum of its proper divisors (1).

38385569 is an equidigital number, since it uses as much as digits as its factorization.

38385569 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 777600, while the sum is 47.

The square root of 38385569 is about 6195.6088482085. The cubic root of 38385569 is about 337.3307984060.

The spelling of 38385569 in words is "thirty-eight million, three hundred eighty-five thousand, five hundred sixty-nine".