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38641090 = 2543731231
BaseRepresentation
bin1001001101100…
…1110111000010
32200201011121111
42103121313002
534343003330
63500113534
7646305145
oct223316702
980634544
1038641090
111a8a2694
1210b358aa
13800c167
1451bc05c
1535d432a
hex24d9dc2

38641090 has 32 divisors (see below), whose sum is σ = 72205056. Its totient is φ = 14878080.

The previous prime is 38641073. The next prime is 38641091. The reversal of 38641090 is 9014683.

38641090 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (38641091) 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 15 ways as a sum of consecutive naturals, for example, 30775 + ... + 32005.

It is an arithmetic number, because the mean of its divisors is an integer number (2256408).

Almost surely, 238641090 is an apocalyptic number.

38641090 is a deficient number, since it is larger than the sum of its proper divisors (33563966).

38641090 is a wasteful number, since it uses less digits than its factorization.

38641090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1354.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 38641090 is about 6216.1957819876. The cubic root of 38641090 is about 338.0776463423.

The spelling of 38641090 in words is "thirty-eight million, six hundred forty-one thousand, ninety".

Divisors: 1 2 5 10 43 73 86 146 215 365 430 730 1231 2462 3139 6155 6278 12310 15695 31390 52933 89863 105866 179726 264665 449315 529330 898630 3864109 7728218 19320545 38641090