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1311144341 = 13271372167
BaseRepresentation
bin100111000100110…
…0111100110010101
310101101011000220112
41032021213212111
510141123104331
6334034212405
744330354153
oct11611474625
93341130815
101311144341
1161311a171
12307124105
1317b83a670
14c61c23d3
157a19232b
hex4e267995

1311144341 has 8 divisors (see below), whose sum is σ = 1417215744. Its totient is φ = 1205817840.

The previous prime is 1311144319. The next prime is 1311144379. The reversal of 1311144341 is 1434411131.

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 1311144341 - 214 = 1311127957 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 (1311144841) 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, 182561 + ... + 189606.

It is an arithmetic number, because the mean of its divisors is an integer number (177151968).

Almost surely, 21311144341 is an apocalyptic number.

It is an amenable number.

1311144341 is a deficient number, since it is larger than the sum of its proper divisors (106071403).

1311144341 is a wasteful number, since it uses less digits than its factorization.

1311144341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 372451.

The product of its digits is 576, while the sum is 23.

The square root of 1311144341 is about 36209.7271599773. The cubic root of 1311144341 is about 1094.5026941889.

Adding to 1311144341 its reverse (1434411131), we get a palindrome (2745555472).

The spelling of 1311144341 in words is "one billion, three hundred eleven million, one hundred forty-four thousand, three hundred forty-one".

Divisors: 1 13 271 3523 372167 4838171 100857257 1311144341