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13233205 = 52646641
BaseRepresentation
bin110010011110…
…110000110101
3220220022112201
4302132300311
511341430310
61151344501
7220323526
oct62366065
926808481
1013233205
117519337
124522131
1329843cb
141a8684d
151265e3a
hexc9ec35

13233205 has 4 divisors (see below), whose sum is σ = 15879852. Its totient is φ = 10586560.

The previous prime is 13233203. The next prime is 13233229. The reversal of 13233205 is 50233231.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9205156 + 4028049 = 3034^2 + 2007^2 .

It is not a de Polignac number, because 13233205 - 21 = 13233203 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13233203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1323316 + ... + 1323325.

It is an arithmetic number, because the mean of its divisors is an integer number (3969963).

Almost surely, 213233205 is an apocalyptic number.

It is an amenable number.

13233205 is a deficient number, since it is larger than the sum of its proper divisors (2646647).

13233205 is an equidigital number, since it uses as much as digits as its factorization.

13233205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2646646.

The product of its (nonzero) digits is 540, while the sum is 19.

The square root of 13233205 is about 3637.7472424565. The cubic root of 13233205 is about 236.5311518932.

Adding to 13233205 its reverse (50233231), we get a palindrome (63466436).

The spelling of 13233205 in words is "thirteen million, two hundred thirty-three thousand, two hundred five".

Divisors: 1 5 2646641 13233205