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13130545 = 517179863
BaseRepresentation
bin110010000101…
…101100110001
3220201002201111
4302011230301
511330134140
61145233321
7216415321
oct62055461
926632644
1013130545
11745919a
124492841
13294976c
141a5b281
1512457ea
hexc85b31

13130545 has 16 divisors (see below), whose sum is σ = 16796160. Its totient is φ = 9819904.

The previous prime is 13130521. The next prime is 13130549. The reversal of 13130545 is 54503131.

It is a happy number.

13130545 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 13130545 - 217 = 12999473 is a prime.

It is a super-2 number, since 2×131305452 = 344822423994050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13130549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14784 + ... + 15646.

It is an arithmetic number, because the mean of its divisors is an integer number (1049760).

Almost surely, 213130545 is an apocalyptic number.

It is an amenable number.

13130545 is a deficient number, since it is larger than the sum of its proper divisors (3665615).

13130545 is a wasteful number, since it uses less digits than its factorization.

13130545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1064.

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 13130545 is about 3623.6093884413. The cubic root of 13130545 is about 235.9179128953.

Adding to 13130545 its reverse (54503131), we get a palindrome (67633676).

The spelling of 13130545 in words is "thirteen million, one hundred thirty thousand, five hundred forty-five".

Divisors: 1 5 17 85 179 863 895 3043 4315 14671 15215 73355 154477 772385 2626109 13130545