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206044033 = 1373217117
BaseRepresentation
bin11000100011111…
…11101110000001
3112100201010021111
430101333232001
5410221402113
632240123321
75051226316
oct1421775601
9470633244
10206044033
11a6340a28
1259006541
13338c2360
141d516d0d
151315013d
hexc47fb81

206044033 has 8 divisors (see below), whose sum is σ = 224934248. Its totient is φ = 187588224.

The previous prime is 206044021. The next prime is 206044039. The reversal of 206044033 is 330440602.

It can be written as a sum of positive squares in 4 ways, for example, as 178929 + 205865104 = 423^2 + 14348^2 .

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 206044033 - 25 = 206044001 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 206043995 and 206044013.

It is not an unprimeable number, because it can be changed into a prime (206044039) 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, 107610 + ... + 109507.

It is an arithmetic number, because the mean of its divisors is an integer number (28116781).

Almost surely, 2206044033 is an apocalyptic number.

It is an amenable number.

206044033 is a deficient number, since it is larger than the sum of its proper divisors (18890215).

206044033 is a wasteful number, since it uses less digits than its factorization.

206044033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217203.

The product of its (nonzero) digits is 1728, while the sum is 22.

The square root of 206044033 is about 14354.2339746850. The cubic root of 206044033 is about 590.6361356690.

Adding to 206044033 its reverse (330440602), we get a palindrome (536484635).

The spelling of 206044033 in words is "two hundred six million, forty-four thousand, thirty-three".

Divisors: 1 13 73 949 217117 2822521 15849541 206044033