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2003205341 = 18731069517
BaseRepresentation
bin111011101100110…
…0111110011011101
312011121101101010102
41313121213303131
513100310032331
6530435350445
7100432651544
oct16731476335
95147341112
102003205341
11938836905
1247aa52425
1325c02a307
1415009115b
15bace74cb
hex77667cdd

2003205341 has 4 divisors (see below), whose sum is σ = 2004276732. Its totient is φ = 2002133952.

The previous prime is 2003205313. The next prime is 2003205343. The reversal of 2003205341 is 1435023002.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1128288100 + 874917241 = 33590^2 + 29579^2 .

It is a cyclic number.

It is not a de Polignac number, because 2003205341 - 26 = 2003205277 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 (2003205343) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 532886 + ... + 536631.

It is an arithmetic number, because the mean of its divisors is an integer number (501069183).

Almost surely, 22003205341 is an apocalyptic number.

It is an amenable number.

2003205341 is a deficient number, since it is larger than the sum of its proper divisors (1071391).

2003205341 is a wasteful number, since it uses less digits than its factorization.

2003205341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1071390.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 2003205341 is about 44757.1820046794. The cubic root of 2003205341 is about 1260.5937700728.

Adding to 2003205341 its reverse (1435023002), we get a palindrome (3438228343).

The spelling of 2003205341 in words is "two billion, three million, two hundred five thousand, three hundred forty-one".

Divisors: 1 1873 1069517 2003205341