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13284121 is a prime number
BaseRepresentation
bin110010101011…
…001100011001
3220222220101111
4302223030121
511400042441
61152420321
7220625134
oct62531431
926886344
1013284121
117553614
1245476a1
1329a1636
141a9b21b
151276081
hexcab319

13284121 has 2 divisors, whose sum is σ = 13284122. Its totient is φ = 13284120.

The previous prime is 13284113. The next prime is 13284137. The reversal of 13284121 is 12148231.

It is a happy number.

13284121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7901721 + 5382400 = 2811^2 + 2320^2 .

It is a cyclic number.

It is not a de Polignac number, because 13284121 - 23 = 13284113 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13284092 and 13284101.

It is not a weakly prime, because it can be changed into another prime (13284181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6642060 + 6642061.

It is an arithmetic number, because the mean of its divisors is an integer number (6642061).

Almost surely, 213284121 is an apocalyptic number.

It is an amenable number.

13284121 is a deficient number, since it is larger than the sum of its proper divisors (1).

13284121 is an equidigital number, since it uses as much as digits as its factorization.

13284121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 384, while the sum is 22.

The square root of 13284121 is about 3644.7388109438. The cubic root of 13284121 is about 236.8341222685.

The spelling of 13284121 in words is "thirteen million, two hundred eighty-four thousand, one hundred twenty-one".