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38495665 = 513245557
BaseRepresentation
bin1001001011011…
…0010110110001
32200102210010101
42102312112301
534323330130
63453032401
7645131155
oct222662661
980383111
1038495665
111a8033aa
1210a85701
137c8ac00
145181065
1535a61ca
hex24b65b1

38495665 has 12 divisors (see below), whose sum is σ = 50022684. Its totient is φ = 28426944.

The previous prime is 38495663. The next prime is 38495669. The reversal of 38495665 is 56659483.

38495665 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 6 ways, for example, as 8814961 + 29680704 = 2969^2 + 5448^2 .

It is not a de Polignac number, because 38495665 - 21 = 38495663 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38495663) 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 11 ways as a sum of consecutive naturals, for example, 21934 + ... + 23623.

It is an arithmetic number, because the mean of its divisors is an integer number (4168557).

Almost surely, 238495665 is an apocalyptic number.

It is an amenable number.

38495665 is a deficient number, since it is larger than the sum of its proper divisors (11527019).

38495665 is a wasteful number, since it uses less digits than its factorization.

38495665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45588 (or 45575 counting only the distinct ones).

The product of its digits is 777600, while the sum is 46.

The square root of 38495665 is about 6204.4874889067. The cubic root of 38495665 is about 337.6529969332.

The spelling of 38495665 in words is "thirty-eight million, four hundred ninety-five thousand, six hundred sixty-five".

Divisors: 1 5 13 65 169 845 45557 227785 592241 2961205 7699133 38495665