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1348832639 = 71126836529
BaseRepresentation
bin101000001100101…
…1000110101111111
310111000001210112102
41100121120311333
510230300121024
6341502055315
745265613450
oct12031306577
93430053472
101348832639
11632420a20
1231787a53b
131865a4c2b
14cb1d3127
157d6391ae
hex50658d7f

1348832639 has 16 divisors (see below), whose sum is σ = 1682545920. Its totient is φ = 1050485760.

The previous prime is 1348832621. The next prime is 1348832713. The reversal of 1348832639 is 9362388431.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1348832639 - 212 = 1348828543 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1348832593 and 1348832602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1348832609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 203327 + ... + 209855.

It is an arithmetic number, because the mean of its divisors is an integer number (105159120).

Almost surely, 21348832639 is an apocalyptic number.

1348832639 is a deficient number, since it is larger than the sum of its proper divisors (333713281).

1348832639 is a wasteful number, since it uses less digits than its factorization.

1348832639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9230.

The product of its digits is 746496, while the sum is 47.

The square root of 1348832639 is about 36726.4569350217. The cubic root of 1348832639 is about 1104.8907951564.

The spelling of 1348832639 in words is "one billion, three hundred forty-eight million, eight hundred thirty-two thousand, six hundred thirty-nine".

Divisors: 1 7 11 77 2683 6529 18781 29513 45703 71819 206591 502733 17517307 122621149 192690377 1348832639