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38365805 = 535321737
BaseRepresentation
bin1001001001011…
…0101001101101
32200012011222202
42102112221231
534310201210
63450151245
7644050442
oct222265155
980164882
1038365805
111a724885
1210a22525
137c43a7a
1451499c9
15357c9a5
hex2496a6d

38365805 has 8 divisors (see below), whose sum is σ = 46171512. Its totient is φ = 30604288.

The previous prime is 38365793. The next prime is 38365819. The reversal of 38365805 is 50856383.

38365805 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 4 ways, for example, as 169 + 38365636 = 13^2 + 6194^2 .

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 38365805 - 212 = 38361709 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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, 9104 + ... + 12633.

It is an arithmetic number, because the mean of its divisors is an integer number (5771439).

Almost surely, 238365805 is an apocalyptic number.

It is an amenable number.

38365805 is a deficient number, since it is larger than the sum of its proper divisors (7805707).

38365805 is a wasteful number, since it uses less digits than its factorization.

38365805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22095.

The product of its (nonzero) digits is 86400, while the sum is 38.

The square root of 38365805 is about 6194.0136422194. The cubic root of 38365805 is about 337.2728933943.

The spelling of 38365805 in words is "thirty-eight million, three hundred sixty-five thousand, eight hundred five".

Divisors: 1 5 353 1765 21737 108685 7673161 38365805