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13234121 = 29456349
BaseRepresentation
bin110010011110…
…111111001001
3220220100210122
4302132333021
511341442441
61151353025
7220326305
oct62367711
926810718
1013234121
117519a9a
124522775
132984954
141a86d05
15126634b
hexc9efc9

13234121 has 4 divisors (see below), whose sum is σ = 13690500. Its totient is φ = 12777744.

The previous prime is 13234099. The next prime is 13234141. The reversal of 13234121 is 12143231.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12143231 = 66118371.

It can be written as a sum of positive squares in 2 ways, for example, as 2768896 + 10465225 = 1664^2 + 3235^2 .

It is a cyclic number.

It is not a de Polignac number, because 13234121 - 210 = 13233097 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 13234121.

It is not an unprimeable number, because it can be changed into a prime (13234141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 228146 + ... + 228203.

It is an arithmetic number, because the mean of its divisors is an integer number (3422625).

Almost surely, 213234121 is an apocalyptic number.

It is an amenable number.

13234121 is a deficient number, since it is larger than the sum of its proper divisors (456379).

13234121 is an equidigital number, since it uses as much as digits as its factorization.

13234121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 456378.

The product of its digits is 144, while the sum is 17.

The square root of 13234121 is about 3637.8731423732. The cubic root of 13234121 is about 236.5366093148.

Adding to 13234121 its reverse (12143231), we get a palindrome (25377352).

The spelling of 13234121 in words is "thirteen million, two hundred thirty-four thousand, one hundred twenty-one".

Divisors: 1 29 456349 13234121