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38240757 = 329774349
BaseRepresentation
bin1001000111100…
…0000111110101
32122221211110100
42101320013311
534242201012
63443344313
7643020042
oct221700765
978854410
1038240757
111a649935
1210982099
137bcbb89
1451161c9
1535558dc
hex24781f5

38240757 has 12 divisors (see below), whose sum is σ = 55305900. Its totient is φ = 25461888.

The previous prime is 38240753. The next prime is 38240773. The reversal of 38240757 is 75704283.

38240757 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 2 ways, for example, as 17089956 + 21150801 = 4134^2 + 4599^2 .

It is not a de Polignac number, because 38240757 - 22 = 38240753 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38240753) 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, 6619 + ... + 10967.

It is an arithmetic number, because the mean of its divisors is an integer number (4608825).

Almost surely, 238240757 is an apocalyptic number.

It is an amenable number.

38240757 is a deficient number, since it is larger than the sum of its proper divisors (17065143).

38240757 is a wasteful number, since it uses less digits than its factorization.

38240757 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5332 (or 5329 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 36.

The square root of 38240757 is about 6183.9111410175. The cubic root of 38240757 is about 336.9060632146.

The spelling of 38240757 in words is "thirty-eight million, two hundred forty thousand, seven hundred fifty-seven".

Divisors: 1 3 9 977 2931 4349 8793 13047 39141 4248973 12746919 38240757