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13368143 = 79169217
BaseRepresentation
bin110010111111…
…101101001111
3221011011122102
4302333231033
511410240033
61154305315
7221425115
oct62775517
927134572
1013368143
117600758
12458823b
132a00959
141abdab5
151290de8
hexcbfb4f

13368143 has 4 divisors (see below), whose sum is σ = 13537440. Its totient is φ = 13198848.

The previous prime is 13368139. The next prime is 13368149. The reversal of 13368143 is 34186331.

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

It is a cyclic number.

It is not a de Polignac number, because 13368143 - 22 = 13368139 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13368149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 84530 + ... + 84687.

It is an arithmetic number, because the mean of its divisors is an integer number (3384360).

Almost surely, 213368143 is an apocalyptic number.

13368143 is a deficient number, since it is larger than the sum of its proper divisors (169297).

13368143 is an equidigital number, since it uses as much as digits as its factorization.

13368143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169296.

The product of its digits is 5184, while the sum is 29.

The square root of 13368143 is about 3656.2471196570. The cubic root of 13368143 is about 237.3323980960.

The spelling of 13368143 in words is "thirteen million, three hundred sixty-eight thousand, one hundred forty-three".

Divisors: 1 79 169217 13368143