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206030383 = 13109145399
BaseRepresentation
bin11000100011111…
…00011000101111
3112100200102112221
430101330120233
5410220433013
632235540211
75051141446
oct1421743057
9470612487
10206030383
11a6331749
1258bba667
13338b9090
141d511d5d
151314b08d
hexc47c62f

206030383 has 8 divisors (see below), whose sum is σ = 223916000. Its totient is φ = 188435808.

The previous prime is 206030359. The next prime is 206030399. The reversal of 206030383 is 383030602.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 206030383 - 25 = 206030351 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 (206030303) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71283 + ... + 74116.

It is an arithmetic number, because the mean of its divisors is an integer number (27989500).

Almost surely, 2206030383 is an apocalyptic number.

206030383 is a deficient number, since it is larger than the sum of its proper divisors (17885617).

206030383 is a wasteful number, since it uses less digits than its factorization.

206030383 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145521.

The product of its (nonzero) digits is 2592, while the sum is 25.

The square root of 206030383 is about 14353.7584973414. The cubic root of 206030383 is about 590.6230925650.

Adding to 206030383 its reverse (383030602), we get a palindrome (589060985).

The spelling of 206030383 in words is "two hundred six million, thirty thousand, three hundred eighty-three".

Divisors: 1 13 109 1417 145399 1890187 15848491 206030383