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4775385 = 351761307
BaseRepresentation
bin10010001101110111011001
322222121121010
4102031313121
52210303020
6250204133
755406256
oct22156731
98877533
104775385
1127718aa
121723649
13cb2794
148c442d
15644de0
hex48ddd9

4775385 has 32 divisors (see below), whose sum is σ = 8249472. Its totient is φ = 2350080.

The previous prime is 4775383. The next prime is 4775413. The reversal of 4775385 is 5835774.

4775385 = T1 + T2 + ... + T305.

4775385 is a nontrivial binomial coefficient, being equal to C(307, 3).

It is not a de Polignac number, because 4775385 - 21 = 4775383 is a prime.

It is a Curzon number.

It is a nialpdrome in base 9.

It is not an unprimeable number, because it can be changed into a prime (4775383) by changing a digit.

It is the 305-th tetrahedral 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 31 ways as a sum of consecutive naturals, for example, 15402 + ... + 15708.

It is an arithmetic number, because the mean of its divisors is an integer number (257796).

Almost surely, 24775385 is an apocalyptic number.

It is an amenable number.

4775385 is a deficient number, since it is larger than the sum of its proper divisors (3474087).

4775385 is a wasteful number, since it uses less digits than its factorization.

4775385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 393.

The product of its digits is 117600, while the sum is 39.

The square root of 4775385 is about 2185.2654301023. The cubic root of 4775385 is about 168.3976902131.

The spelling of 4775385 in words is "four million, seven hundred seventy-five thousand, three hundred eighty-five".

Divisors: 1 3 5 15 17 51 61 85 183 255 305 307 915 921 1037 1535 3111 4605 5185 5219 15555 15657 18727 26095 56181 78285 93635 280905 318359 955077 1591795 4775385