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13129807 is a prime number
BaseRepresentation
bin110010000101…
…100001001111
3220201001201011
4302011201033
511330123212
61145230051
7216413215
oct62054117
926631634
1013129807
117458689
124492327
132949322
141a5acb5
1512454a7
hexc8584f

13129807 has 2 divisors, whose sum is σ = 13129808. Its totient is φ = 13129806.

The previous prime is 13129793. The next prime is 13129841. The reversal of 13129807 is 70892131.

It is a weak prime.

It is an emirp because it is prime and its reverse (70892131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13129807 - 219 = 12605519 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13129867) 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 as a sum of consecutive naturals, namely, 6564903 + 6564904.

It is an arithmetic number, because the mean of its divisors is an integer number (6564904).

Almost surely, 213129807 is an apocalyptic number.

13129807 is a deficient number, since it is larger than the sum of its proper divisors (1).

13129807 is an equidigital number, since it uses as much as digits as its factorization.

13129807 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3024, while the sum is 31.

The square root of 13129807 is about 3623.5075548424. The cubic root of 13129807 is about 235.9134929040.

The spelling of 13129807 in words is "thirteen million, one hundred twenty-nine thousand, eight hundred seven".