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13344143 = 23357271
BaseRepresentation
bin110010111001…
…110110001111
3221002221201112
4302321312033
511404003033
61154002235
7221265131
oct62716617
927087645
1013344143
11759471a
12457637b
1329c2a57
141ab5051
151288c48
hexcb9d8f

13344143 has 4 divisors (see below), whose sum is σ = 13401648. Its totient is φ = 13286640.

The previous prime is 13344131. The next prime is 13344157. The reversal of 13344143 is 34144331.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-13344143 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 (13344113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28403 + ... + 28868.

It is an arithmetic number, because the mean of its divisors is an integer number (3350412).

Almost surely, 213344143 is an apocalyptic number.

13344143 is a deficient number, since it is larger than the sum of its proper divisors (57505).

13344143 is an equidigital number, since it uses as much as digits as its factorization.

13344143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57504.

The product of its digits is 1728, while the sum is 23.

The square root of 13344143 is about 3652.9635913871. The cubic root of 13344143 is about 237.1902843747.

Adding to 13344143 its reverse (34144331), we get a palindrome (47488474).

The spelling of 13344143 in words is "thirteen million, three hundred forty-four thousand, one hundred forty-three".

Divisors: 1 233 57271 13344143