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4205353809 = 319346121317
BaseRepresentation
bin1111101010101000…
…1001101101010001
3101212002010002220210
43322222021231101
532103032310214
61533143154333
7206132626506
oct37252115521
911762102823
104205353809
1118688a3618
129944459a9
13520331847
142bc72b4ad
151992dab59
hexfaa89b51

4205353809 has 16 divisors (see below), whose sum is σ = 5904233280. Its totient is φ = 2655120960.

The previous prime is 4205353793. The next prime is 4205353813. The reversal of 4205353809 is 9083535024.

It is not a de Polignac number, because 4205353809 - 24 = 4205353793 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4205353309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 186619 + ... + 207935.

It is an arithmetic number, because the mean of its divisors is an integer number (369014580).

Almost surely, 24205353809 is an apocalyptic number.

It is an amenable number.

4205353809 is a deficient number, since it is larger than the sum of its proper divisors (1698879471).

4205353809 is a wasteful number, since it uses less digits than its factorization.

4205353809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24800.

The product of its (nonzero) digits is 129600, while the sum is 39.

The square root of 4205353809 is about 64848.6993624390. The cubic root of 4205353809 is about 1614.1139096019.

The spelling of 4205353809 in words is "four billion, two hundred five million, three hundred fifty-three thousand, eight hundred nine".

Divisors: 1 3 19 57 3461 10383 21317 63951 65759 197277 405023 1215069 73778137 221334411 1401784603 4205353809