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13412244243 = 34470748081
BaseRepresentation
bin11000111110110111…
…01001101100010011
31021121201111121020210
430133123221230103
5204432013303433
610054514535203
7653240123616
oct143733515423
937551447223
1013412244243
115762953682
122723897503
13135990c4c8
149133da17d
15537733463
hex31f6e9b13

13412244243 has 4 divisors (see below), whose sum is σ = 17882992328. Its totient is φ = 8941496160.

The previous prime is 13412244233. The next prime is 13412244259. The reversal of 13412244243 is 34244221431.

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

It is not a de Polignac number, because 13412244243 - 24 = 13412244227 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13412244243.

It is not an unprimeable number, because it can be changed into a prime (13412244233) 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, 2235374038 + ... + 2235374043.

It is an arithmetic number, because the mean of its divisors is an integer number (4470748082).

Almost surely, 213412244243 is an apocalyptic number.

13412244243 is a deficient number, since it is larger than the sum of its proper divisors (4470748085).

13412244243 is an equidigital number, since it uses as much as digits as its factorization.

13412244243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4470748084.

The product of its digits is 18432, while the sum is 30.

Adding to 13412244243 its reverse (34244221431), we get a palindrome (47656465674).

The spelling of 13412244243 in words is "thirteen billion, four hundred twelve million, two hundred forty-four thousand, two hundred forty-three".

Divisors: 1 3 4470748081 13412244243