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1304137679 = 13260712713
BaseRepresentation
bin100110110111011…
…1000111111001111
310100212222001120112
41031232320333033
510132324401204
6333224110235
744213662445
oct11556707717
93325861515
101304137679
1160a173a39
1230490537b
1317a256400
14c52bab95
157975b26e
hex4dbb8fcf

1304137679 has 12 divisors (see below), whose sum is σ = 1414610496. Its totient is φ = 1201741632.

The previous prime is 1304137621. The next prime is 1304137691. The reversal of 1304137679 is 9767314031.

It is not a de Polignac number, because 1304137679 - 28 = 1304137423 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1304131679) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 96227 + ... + 108939.

It is an arithmetic number, because the mean of its divisors is an integer number (117884208).

Almost surely, 21304137679 is an apocalyptic number.

1304137679 is a deficient number, since it is larger than the sum of its proper divisors (110472817).

1304137679 is a wasteful number, since it uses less digits than its factorization.

1304137679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13346 (or 13333 counting only the distinct ones).

The product of its (nonzero) digits is 95256, while the sum is 41.

The square root of 1304137679 is about 36112.8464538590. The cubic root of 1304137679 is about 1092.5495627594.

The spelling of 1304137679 in words is "one billion, three hundred four million, one hundred thirty-seven thousand, six hundred seventy-nine".

Divisors: 1 13 169 607 7891 12713 102583 165269 2148497 7716791 100318283 1304137679