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13145441111 = 118461141241
BaseRepresentation
bin11000011111000011…
…11000001101010111
31020221010110121011022
430033201320031113
5203410213103421
610012224231355
7643520256125
oct141741701527
936833417138
1013145441111
115636293520
12266a46b55b
13131656582a
148c9bc8915
1551e0d07ab
hex30f878357

13145441111 has 8 divisors (see below), whose sum is σ = 14342277648. Its totient is φ = 11948904000.

The previous prime is 13145441087. The next prime is 13145441143. The reversal of 13145441111 is 11114454131.

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

It is not a de Polignac number, because 13145441111 - 214 = 13145424727 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13145441161) 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, 22451 + ... + 163691.

It is an arithmetic number, because the mean of its divisors is an integer number (1792784706).

Almost surely, 213145441111 is an apocalyptic number.

13145441111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

13145441111 is a deficient number, since it is larger than the sum of its proper divisors (1196836537).

13145441111 is a wasteful number, since it uses less digits than its factorization.

13145441111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149713.

The product of its digits is 960, while the sum is 26.

Adding to 13145441111 its reverse (11114454131), we get a palindrome (24259895242).

The spelling of 13145441111 in words is "thirteen billion, one hundred forty-five million, four hundred forty-one thousand, one hundred eleven".

Divisors: 1 11 8461 93071 141241 1553651 1195040101 13145441111