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13442012243 = 1111027110819
BaseRepresentation
bin11001000010011010…
…01101010001010011
31021200210111222021022
430201031031101103
5210012123342433
610101500550055
7654051135032
oct144115152123
937623458238
1013442012243
115778735830
12273185232b
131362b329ca
14917348719
1553a163698
hex32134d453

13442012243 has 8 divisors (see below), whose sum is σ = 14665475520. Its totient is φ = 12218792680.

The previous prime is 13442012239. The next prime is 13442012257. The reversal of 13442012243 is 34221024431.

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 13442012243 - 22 = 13442012239 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13442012543) 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, 65888 + ... + 176706.

It is an arithmetic number, because the mean of its divisors is an integer number (1833184440).

Almost surely, 213442012243 is an apocalyptic number.

13442012243 is a deficient number, since it is larger than the sum of its proper divisors (1223463277).

13442012243 is a wasteful number, since it uses less digits than its factorization.

13442012243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121857.

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 13442012243 its reverse (34221024431), we get a palindrome (47663036674).

The spelling of 13442012243 in words is "thirteen billion, four hundred forty-two million, twelve thousand, two hundred forty-three".

Divisors: 1 11 11027 110819 121297 1219009 1222001113 13442012243