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13233733 = 14988817
BaseRepresentation
bin110010011110…
…111001000101
3220220100021021
4302132321011
511341434413
61151351141
7220325212
oct62367105
926810237
1013233733
117519777
1245224b1
132984716
141a86b09
15126618d
hexc9ee45

13233733 has 4 divisors (see below), whose sum is σ = 13322700. Its totient is φ = 13144768.

The previous prime is 13233713. The next prime is 13233757. The reversal of 13233733 is 33733231.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 33733231 = 74819033.

It can be written as a sum of positive squares in 2 ways, for example, as 3392964 + 9840769 = 1842^2 + 3137^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-13233733 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13233698 and 13233707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13233713) 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, 44260 + ... + 44557.

It is an arithmetic number, because the mean of its divisors is an integer number (3330675).

Almost surely, 213233733 is an apocalyptic number.

It is an amenable number.

13233733 is a deficient number, since it is larger than the sum of its proper divisors (88967).

13233733 is an equidigital number, since it uses as much as digits as its factorization.

13233733 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88966.

The product of its digits is 3402, while the sum is 25.

The square root of 13233733 is about 3637.8198141194. The cubic root of 13233733 is about 236.5342976867.

Adding to 13233733 its reverse (33733231), we get a palindrome (46966964).

The spelling of 13233733 in words is "thirteen million, two hundred thirty-three thousand, seven hundred thirty-three".

Divisors: 1 149 88817 13233733