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13397333 = 29461977
BaseRepresentation
bin110011000110…
…110101010101
3221012122200112
4303012311111
511412203313
61155052405
7221606165
oct63066525
927178615
1013397333
117620684
1245a1105
132a11021
141aca5a5
1512998a8
hexcc6d55

13397333 has 4 divisors (see below), whose sum is σ = 13859340. Its totient is φ = 12935328.

The previous prime is 13397327. The next prime is 13397341. The reversal of 13397333 is 33379331.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 33379331 = 277120503.

It can be written as a sum of positive squares in 2 ways, for example, as 4765489 + 8631844 = 2183^2 + 2938^2 .

It is a cyclic number.

It is not a de Polignac number, because 13397333 - 24 = 13397317 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13397333.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13397353) 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, 230960 + ... + 231017.

It is an arithmetic number, because the mean of its divisors is an integer number (3464835).

Almost surely, 213397333 is an apocalyptic number.

It is an amenable number.

13397333 is a deficient number, since it is larger than the sum of its proper divisors (462007).

13397333 is an equidigital number, since it uses as much as digits as its factorization.

13397333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 462006.

The product of its digits is 15309, while the sum is 32.

The square root of 13397333 is about 3660.2367409773. The cubic root of 13397333 is about 237.5050148526.

The spelling of 13397333 in words is "thirteen million, three hundred ninety-seven thousand, three hundred thirty-three".

Divisors: 1 29 461977 13397333