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206038121 = 318380077
BaseRepresentation
bin11000100011111…
…10010001101001
3112100200211011112
430101332101221
5410221204441
632240040105
75051203142
oct1421762151
9470624145
10206038121
11a6337543
1259003035
13338bc763
141d514ac9
151314d4eb
hexc47e469

206038121 has 8 divisors (see below), whose sum is σ = 215249664. Its totient is φ = 196986960.

The previous prime is 206038099. The next prime is 206038153. The reversal of 206038121 is 121830602.

206038121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 206038121 - 26 = 206038057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (206038321) 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, 37466 + ... + 42611.

It is an arithmetic number, because the mean of its divisors is an integer number (26906208).

Almost surely, 2206038121 is an apocalyptic number.

It is an amenable number.

206038121 is a deficient number, since it is larger than the sum of its proper divisors (9211543).

206038121 is an equidigital number, since it uses as much as digits as its factorization.

206038121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80191.

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 206038121 is about 14354.0280409368. The cubic root of 206038121 is about 590.6304865946.

Adding to 206038121 its reverse (121830602), we get a palindrome (327868723).

The spelling of 206038121 in words is "two hundred six million, thirty-eight thousand, one hundred twenty-one".

Divisors: 1 31 83 2573 80077 2482387 6646391 206038121