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13324143 = 37634483
BaseRepresentation
bin110010110100…
…111101101111
3221001221021210
4302310331233
511402333033
61153325503
7221152620
oct62647557
927057253
1013324143
117580698
124566893
1329b6911
141aaba47
151282d63
hexcb4f6f

13324143 has 8 divisors (see below), whose sum is σ = 20303488. Its totient is φ = 7613784.

The previous prime is 13324133. The next prime is 13324151. The reversal of 13324143 is 34142331.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13324143 - 24 = 13324127 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 634483 = 13324143 / (1 + 3 + 3 + 2 + 4 + 1 + 4 + 3).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13324133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 317221 + ... + 317262.

It is an arithmetic number, because the mean of its divisors is an integer number (2537936).

Almost surely, 213324143 is an apocalyptic number.

13324143 is a deficient number, since it is larger than the sum of its proper divisors (6979345).

13324143 is an equidigital number, since it uses as much as digits as its factorization.

13324143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 634493.

The product of its digits is 864, while the sum is 21.

The square root of 13324143 is about 3650.2250615544. The cubic root of 13324143 is about 237.0717260517.

Adding to 13324143 its reverse (34142331), we get a palindrome (47466474).

The spelling of 13324143 in words is "thirteen million, three hundred twenty-four thousand, one hundred forty-three".

Divisors: 1 3 7 21 634483 1903449 4441381 13324143