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13130009 is a prime number
BaseRepresentation
bin110010000101…
…100100011001
3220201001222122
4302011210121
511330130014
61145231025
7216413624
oct62054431
926631878
1013130009
117458852
124492475
132949449
141a5adbb
15124558e
hexc85919

13130009 has 2 divisors, whose sum is σ = 13130010. Its totient is φ = 13130008.

The previous prime is 13130003. The next prime is 13130027. The reversal of 13130009 is 90003131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11560000 + 1570009 = 3400^2 + 1253^2 .

It is an emirp because it is prime and its reverse (90003131) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-13130009 is a prime.

It is a Chen prime.

It is a plaindrome in base 15.

It is not a weakly prime, because it can be changed into another prime (13130003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6565004 + 6565005.

It is an arithmetic number, because the mean of its divisors is an integer number (6565005).

Almost surely, 213130009 is an apocalyptic number.

It is an amenable number.

13130009 is a deficient number, since it is larger than the sum of its proper divisors (1).

13130009 is an equidigital number, since it uses as much as digits as its factorization.

13130009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 81, while the sum is 17.

The square root of 13130009 is about 3623.5354282800. The cubic root of 13130009 is about 235.9147027284.

The spelling of 13130009 in words is "thirteen million, one hundred thirty thousand, nine".