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206025313 = 1333014801
BaseRepresentation
bin11000100011110…
…11001001100001
3112100200011121011
430101323021201
5410220302223
632235500521
75051120614
oct1421731141
9470604534
10206025313
11a632895a
1258bb7741
13338b6990
141d51017b
151314980d
hexc47b261

206025313 has 8 divisors (see below), whose sum is σ = 221986856. Its totient is φ = 190080000.

The previous prime is 206025301. The next prime is 206025319. The reversal of 206025313 is 313520602.

It can be written as a sum of positive squares in 4 ways, for example, as 1306449 + 204718864 = 1143^2 + 14308^2 .

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 206025313 - 29 = 206024801 is a prime.

It is not an unprimeable number, because it can be changed into a prime (206025319) 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 7 ways as a sum of consecutive naturals, for example, 40513 + ... + 45313.

It is an arithmetic number, because the mean of its divisors is an integer number (27748357).

Almost surely, 2206025313 is an apocalyptic number.

It is an amenable number.

206025313 is a deficient number, since it is larger than the sum of its proper divisors (15961543).

206025313 is a wasteful number, since it uses less digits than its factorization.

206025313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8115.

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 206025313 is about 14353.5818874593. The cubic root of 206025313 is about 590.6182478367.

Adding to 206025313 its reverse (313520602), we get a palindrome (519545915).

The spelling of 206025313 in words is "two hundred six million, twenty-five thousand, three hundred thirteen".

Divisors: 1 13 3301 4801 42913 62413 15848101 206025313