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13003205 = 512832027
BaseRepresentation
bin110001100110…
…100111000101
3220110122001012
4301212213011
511312100310
61142412005
7215345135
oct61464705
926418035
1013003205
117381556
124431005
132903807
141a26ac5
15121cc05
hexc669c5

13003205 has 8 divisors (see below), whose sum is σ = 15623712. Its totient is φ = 10389328.

The previous prime is 13003171. The next prime is 13003219. The reversal of 13003205 is 50230031.

13003205 is digitally balanced in base 2 and base 3, because in such bases 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 13003205 - 28 = 13002949 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13003205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5402 + ... + 7428.

It is an arithmetic number, because the mean of its divisors is an integer number (1952964).

Almost surely, 213003205 is an apocalyptic number.

It is an amenable number.

13003205 is a deficient number, since it is larger than the sum of its proper divisors (2620507).

13003205 is a wasteful number, since it uses less digits than its factorization.

13003205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3315.

The product of its (nonzero) digits is 90, while the sum is 14.

The square root of 13003205 is about 3605.9957016059. The cubic root of 13003205 is about 235.1527903322.

Adding to 13003205 its reverse (50230031), we get a palindrome (63233236).

The spelling of 13003205 in words is "thirteen million, three thousand, two hundred five".

Divisors: 1 5 1283 2027 6415 10135 2600641 13003205