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4069205 = 57217977
BaseRepresentation
bin1111100001011101010101
321122201220022
433201131111
52020203310
6223114525
746405400
oct17413525
97581808
104069205
11232a288
121442a45
13ac621a
1477cd37
15555a55
hex3e1755

4069205 has 24 divisors (see below), whose sum is σ = 6020568. Its totient is φ = 2623488.

The previous prime is 4069201. The next prime is 4069217. The reversal of 4069205 is 5029604.

It can be written as a sum of positive squares in 4 ways, for example, as 1825201 + 2244004 = 1351^2 + 1498^2 .

It is not a de Polignac number, because 4069205 - 22 = 4069201 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4069201) 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 23 ways as a sum of consecutive naturals, for example, 3677 + ... + 4653.

It is an arithmetic number, because the mean of its divisors is an integer number (250857).

Almost surely, 24069205 is an apocalyptic number.

It is an amenable number.

4069205 is a deficient number, since it is larger than the sum of its proper divisors (1951363).

4069205 is a wasteful number, since it uses less digits than its factorization.

4069205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1013 (or 1006 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 4069205 is about 2017.2270571257. The cubic root of 4069205 is about 159.6503432032.

The spelling of 4069205 in words is "four million, sixty-nine thousand, two hundred five".

Divisors: 1 5 7 17 35 49 85 119 245 595 833 977 4165 4885 6839 16609 34195 47873 83045 116263 239365 581315 813841 4069205