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12903112899 = 3243473112281
BaseRepresentation
bin11000000010001010…
…11110000011000011
31020022020111001100100
430001011132003003
5202411144103044
65532210253443
7634515435645
oct140105360303
936266431310
1012903112899
11552151a776
122601287283
1312a82ab061
148a5948895
15507bb4869
hex30115e0c3

12903112899 has 48 divisors (see below), whose sum is σ = 19548232704. Its totient is φ = 8193225600.

The previous prime is 12903112891. The next prime is 12903112909. The reversal of 12903112899 is 99821130921.

It is not a de Polignac number, because 12903112899 - 23 = 12903112891 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12903112891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5655639 + ... + 5657919.

It is an arithmetic number, because the mean of its divisors is an integer number (407254848).

Almost surely, 212903112899 is an apocalyptic number.

12903112899 is a deficient number, since it is larger than the sum of its proper divisors (6645119805).

12903112899 is a wasteful number, since it uses less digits than its factorization.

12903112899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2688 (or 2685 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 45.

The spelling of 12903112899 in words is "twelve billion, nine hundred three million, one hundred twelve thousand, eight hundred ninety-nine".

Divisors: 1 3 9 43 47 129 141 311 387 423 933 2021 2281 2799 6063 6843 13373 14617 18189 20529 40119 43851 98083 107207 120357 131553 294249 321621 628531 709391 882747 964863 1885593 2128173 4609901 5656779 6384519 13829703 30503813 33341377 41489109 91511439 100024131 274534317 300072393 1433679211 4301037633 12903112899