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13220113443 = 323191595847
BaseRepresentation
bin11000100111111101…
…01110110000100011
31021010022222100100020
430103332232300203
5204033322112233
610023452524523
7645415052535
oct142376566043
937108870306
1013220113443
115674455999
12268b480743
131328b7bc44
148d5aa5855
155259309b3
hex313faec23

13220113443 has 8 divisors (see below), whose sum is σ = 18393201408. Its totient is φ = 8430217224.

The previous prime is 13220113429. The next prime is 13220113453. The reversal of 13220113443 is 34431102231.

It is a happy number.

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

It is not a de Polignac number, because 13220113443 - 25 = 13220113411 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13220113453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 95797855 + ... + 95797992.

It is an arithmetic number, because the mean of its divisors is an integer number (2299150176).

Almost surely, 213220113443 is an apocalyptic number.

13220113443 is a deficient number, since it is larger than the sum of its proper divisors (5173087965).

13220113443 is a wasteful number, since it uses less digits than its factorization.

13220113443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191595873.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 13220113443 its reverse (34431102231), we get a palindrome (47651215674).

The spelling of 13220113443 in words is "thirteen billion, two hundred twenty million, one hundred thirteen thousand, four hundred forty-three".

Divisors: 1 3 23 69 191595847 574787541 4406704481 13220113443