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13110143 = 73179591
BaseRepresentation
bin110010000000…
…101101111111
3220200001201212
4302000231333
511324011033
61144555035
7216301664
oct62005577
926601655
1013110143
117444932
124482a7b
1329403a7
141a53a6b
15123e748
hexc80b7f

13110143 has 4 divisors (see below), whose sum is σ = 13289808. Its totient is φ = 12930480.

The previous prime is 13110137. The next prime is 13110151. The reversal of 13110143 is 34101131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34101131 = 83410857.

It is a cyclic number.

It is not a de Polignac number, because 13110143 - 218 = 12847999 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 (13110443) 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, 89723 + ... + 89868.

It is an arithmetic number, because the mean of its divisors is an integer number (3322452).

Almost surely, 213110143 is an apocalyptic number.

13110143 is a deficient number, since it is larger than the sum of its proper divisors (179665).

13110143 is an equidigital number, since it uses as much as digits as its factorization.

13110143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179664.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 13110143 is about 3620.7931451548. The cubic root of 13110143 is about 235.7956612472.

Adding to 13110143 its reverse (34101131), we get a palindrome (47211274).

The spelling of 13110143 in words is "thirteen million, one hundred ten thousand, one hundred forty-three".

Divisors: 1 73 179591 13110143