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13238653 is a prime number
BaseRepresentation
bin110010100000…
…000101111101
3220220121000111
4302200011331
511342114103
61151430021
7220345441
oct62400575
926817014
1013238653
11752243a
124525311
132986a2c
141a88821
15126786d
hexca017d

13238653 has 2 divisors, whose sum is σ = 13238654. Its totient is φ = 13238652.

The previous prime is 13238633. The next prime is 13238663. The reversal of 13238653 is 35683231.

13238653 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11042329 + 2196324 = 3323^2 + 1482^2 .

It is a cyclic number.

It is not a de Polignac number, because 13238653 - 217 = 13107581 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13238633) 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, 6619326 + 6619327.

It is an arithmetic number, because the mean of its divisors is an integer number (6619327).

Almost surely, 213238653 is an apocalyptic number.

It is an amenable number.

13238653 is a deficient number, since it is larger than the sum of its proper divisors (1).

13238653 is an equidigital number, since it uses as much as digits as its factorization.

13238653 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12960, while the sum is 31.

The square root of 13238653 is about 3638.4959804842. The cubic root of 13238653 is about 236.5636067399.

The spelling of 13238653 in words is "thirteen million, two hundred thirty-eight thousand, six hundred fifty-three".