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13022243 = 134721313
BaseRepresentation
bin110001101011…
…010000100011
3220111121011022
4301223100203
511313202433
61143040055
7215454503
oct61532043
926447138
1013022243
117394893
12444002b
13290c390
141a2da03
151223698
hexc6b423

13022243 has 8 divisors (see below), whose sum is σ = 14323008. Its totient is φ = 11764224.

The previous prime is 13022231. The next prime is 13022257. The reversal of 13022243 is 34222031.

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

It is a cyclic number.

It is not a de Polignac number, because 13022243 - 210 = 13021219 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13022293) 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 7 ways as a sum of consecutive naturals, for example, 10046 + ... + 11267.

It is an arithmetic number, because the mean of its divisors is an integer number (1790376).

Almost surely, 213022243 is an apocalyptic number.

13022243 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

13022243 is a deficient number, since it is larger than the sum of its proper divisors (1300765).

13022243 is a wasteful number, since it uses less digits than its factorization.

13022243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21373.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 13022243 is about 3608.6345062918. The cubic root of 13022243 is about 235.2674968155.

Adding to 13022243 its reverse (34222031), we get a palindrome (47244274).

The spelling of 13022243 in words is "thirteen million, twenty-two thousand, two hundred forty-three".

Divisors: 1 13 47 611 21313 277069 1001711 13022243