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13189303 = 58722469
BaseRepresentation
bin110010010100…
…000010110111
3220211002022201
4302110002313
511334024203
61150405331
7220051531
oct62240267
926732281
1013189303
117499356
124500847
13296a42a
141a74851
151257e1d
hexc940b7

13189303 has 4 divisors (see below), whose sum is σ = 13212360. Its totient is φ = 13166248.

The previous prime is 13189283. The next prime is 13189321. The reversal of 13189303 is 30398131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30398131 = 41597309.

It is a cyclic number.

It is not a de Polignac number, because 13189303 - 25 = 13189271 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 (13189343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10648 + ... + 11821.

It is an arithmetic number, because the mean of its divisors is an integer number (3303090).

Almost surely, 213189303 is an apocalyptic number.

13189303 is a deficient number, since it is larger than the sum of its proper divisors (23057).

13189303 is an equidigital number, since it uses as much as digits as its factorization.

13189303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23056.

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 13189303 is about 3631.7080003767. The cubic root of 13189303 is about 236.2692930504.

The spelling of 13189303 in words is "thirteen million, one hundred eighty-nine thousand, three hundred three".

Divisors: 1 587 22469 13189303