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13031413 is a prime number
BaseRepresentation
bin110001101101…
…011111110101
3220112001201221
4301231133311
511314001123
61143150341
7215523313
oct61553765
926461657
1013031413
1173a076a
1244453b1
1329135c5
141a330b3
15122625d
hexc6d7f5

13031413 has 2 divisors, whose sum is σ = 13031414. Its totient is φ = 13031412.

The previous prime is 13031407. The next prime is 13031419. The reversal of 13031413 is 31413031.

It is a balanced prime because it is at equal distance from previous prime (13031407) and next prime (13031419).

It can be written as a sum of positive squares in only one way, i.e., 11410884 + 1620529 = 3378^2 + 1273^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-13031413 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13031419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6515706 + 6515707.

It is an arithmetic number, because the mean of its divisors is an integer number (6515707).

Almost surely, 213031413 is an apocalyptic number.

It is an amenable number.

13031413 is a deficient number, since it is larger than the sum of its proper divisors (1).

13031413 is an equidigital number, since it uses as much as digits as its factorization.

13031413 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 13031413 is about 3609.9048463914. The cubic root of 13031413 is about 235.3227073949.

Adding to 13031413 its reverse (31413031), we get a palindrome (44444444).

The spelling of 13031413 in words is "thirteen million, thirty-one thousand, four hundred thirteen".