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12518320914 = 23211181349303
BaseRepresentation
bin10111010100010011…
…00110101100010010
31012022102102120222100
423222021212230102
5201114142232124
65430103021230
7622133654301
oct135211465422
935272376870
1012518320914
1153442a1870
12251443a816
1312466629a8
1486a7c2438
154d40071c9
hex2ea266b12

12518320914 has 48 divisors (see below), whose sum is σ = 29752317504. Its totient is φ = 3772461600.

The previous prime is 12518320901. The next prime is 12518320939. The reversal of 12518320914 is 41902381521.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 138814 + ... + 210489.

It is an arithmetic number, because the mean of its divisors is an integer number (619839948).

Almost surely, 212518320914 is an apocalyptic number.

12518320914 is an abundant number, since it is smaller than the sum of its proper divisors (17233996590).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12518320914 is a wasteful number, since it uses less digits than its factorization.

12518320914 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 349503 (or 349500 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

The spelling of 12518320914 in words is "twelve billion, five hundred eighteen million, three hundred twenty thousand, nine hundred fourteen".

Divisors: 1 2 3 6 9 11 18 22 33 66 99 181 198 362 543 1086 1629 1991 3258 3982 5973 11946 17919 35838 349303 698606 1047909 2095818 3143727 3842333 6287454 7684666 11526999 23053998 34580997 63223843 69161994 126447686 189671529 379343058 569014587 695462273 1138029174 1390924546 2086386819 4172773638 6259160457 12518320914