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3850385 = 571173137
BaseRepresentation
bin1110101100000010010001
321020121201212
432230002101
51441203020
6214305505
744504420
oct16540221
97217655
103850385
11219a940
121358295
13a4a746
147232b7
15510cc5
hex3ac091

3850385 has 32 divisors (see below), whose sum is σ = 5882112. Its totient is φ = 2350080.

The previous prime is 3850373. The next prime is 3850387. The reversal of 3850385 is 5830583.

It is not a de Polignac number, because 3850385 - 28 = 3850129 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3850387) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 28037 + ... + 28173.

It is an arithmetic number, because the mean of its divisors is an integer number (183816).

Almost surely, 23850385 is an apocalyptic number.

3850385 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3850385 is a deficient number, since it is larger than the sum of its proper divisors (2031727).

3850385 is a wasteful number, since it uses less digits than its factorization.

3850385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233.

The product of its (nonzero) digits is 14400, while the sum is 32.

The square root of 3850385 is about 1962.2397916667. The cubic root of 3850385 is about 156.7357449006.

The spelling of 3850385 in words is "three million, eight hundred fifty thousand, three hundred eighty-five".

Divisors: 1 5 7 11 35 55 73 77 137 365 385 511 685 803 959 1507 2555 4015 4795 5621 7535 10001 10549 28105 50005 52745 70007 110011 350035 550055 770077 3850385