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12887932925 = 527353208627
BaseRepresentation
bin11000000000010111…
…00011111111111101
31020021011220211100002
430000023203333331
5202343302323200
65530505044045
7634242423320
oct140013437775
936234824302
1012887932925
1155139a183a
1225b8186625
1312a50c481a
148a39167b7
155066b6bd5
hex3002e3ffd

12887932925 has 24 divisors (see below), whose sum is σ = 18315869376. Its totient is φ = 8812362240.

The previous prime is 12887932873. The next prime is 12887932931. The reversal of 12887932925 is 52923978821.

It is a happy number.

It is not a de Polignac number, because 12887932925 - 214 = 12887916541 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 42539 + ... + 166088.

It is an arithmetic number, because the mean of its divisors is an integer number (763161224).

Almost surely, 212887932925 is an apocalyptic number.

It is an amenable number.

12887932925 is a deficient number, since it is larger than the sum of its proper divisors (5427936451).

12887932925 is a wasteful number, since it uses less digits than its factorization.

12887932925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208997 (or 208992 counting only the distinct ones).

The product of its digits is 4354560, while the sum is 56.

The spelling of 12887932925 in words is "twelve billion, eight hundred eighty-seven million, nine hundred thirty-two thousand, nine hundred twenty-five".

Divisors: 1 5 7 25 35 175 353 1765 2471 8825 12355 61775 208627 1043135 1460389 5215675 7301945 36509725 73645331 368226655 515517317 1841133275 2577586585 12887932925