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13003003205 = 512889201769
BaseRepresentation
bin11000001110000101…
…00001010101000101
31020120012110000002022
430013002201111011
5203112232100310
65550135252525
7640140463223
oct140702412505
936505400068
1013003003205
115572946845
12262a81a145
1312c2bb394a
148b4d0bb13
15511846a55
hex3070a1545

13003003205 has 8 divisors (see below), whose sum is σ = 15604891800. Its totient is φ = 10401543936.

The previous prime is 13003003193. The next prime is 13003003213. The reversal of 13003003205 is 50230030031.

It can be written as a sum of positive squares in 4 ways, for example, as 3457322401 + 9545680804 = 58799^2 + 97702^2 .

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 13003003205 - 26 = 13003003141 is a prime.

It is a congruent number.

It is an unprimeable number.

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, 36440 + ... + 165329.

It is an arithmetic number, because the mean of its divisors is an integer number (1950611475).

Almost surely, 213003003205 is an apocalyptic number.

It is an amenable number.

13003003205 is a deficient number, since it is larger than the sum of its proper divisors (2601888595).

13003003205 is a wasteful number, since it uses less digits than its factorization.

13003003205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214663.

The product of its (nonzero) digits is 270, while the sum is 17.

Adding to 13003003205 its reverse (50230030031), we get a palindrome (63233033236).

The spelling of 13003003205 in words is "thirteen billion, three million, three thousand, two hundred five".

Divisors: 1 5 12889 64445 201769 1008845 2600600641 13003003205