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1318713 = 31189449
BaseRepresentation
bin101000001111100111001
32110222221020
411001330321
5314144323
644133053
714131434
oct5017471
92428836
101318713
11820850
12537189
13372306
1426481b
151b0ae3
hex141f39

1318713 has 16 divisors (see below), whose sum is σ = 1944000. Its totient is φ = 788480.

The previous prime is 1318711. The next prime is 1318721. The reversal of 1318713 is 3178131.

It is not a de Polignac number, because 1318713 - 21 = 1318711 is a prime.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (1318711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2713 + ... + 3161.

It is an arithmetic number, because the mean of its divisors is an integer number (121500).

21318713 is an apocalyptic number.

It is an amenable number.

1318713 is a deficient number, since it is larger than the sum of its proper divisors (625287).

1318713 is a wasteful number, since it uses less digits than its factorization.

1318713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 552.

The product of its digits is 504, while the sum is 24.

The square root of 1318713 is about 1148.3522978599. The cubic root of 1318713 is about 109.6604682131.

The spelling of 1318713 in words is "one million, three hundred eighteen thousand, seven hundred thirteen".

Divisors: 1 3 11 33 89 267 449 979 1347 2937 4939 14817 39961 119883 439571 1318713