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12352981683 = 3728921032
BaseRepresentation
bin10111000000100101…
…11000101010110011
31011212220022111012010
423200102320222303
5200244330403213
65401435134003
7615055416600
oct134022705263
934786274163
1012352981683
115269a32a79
122488ba4303
13121b322c23
148528636a7
154c4747ac3
hex2e04b8ab3

12352981683 has 54 divisors (see below), whose sum is σ = 19567380204. Its totient is φ = 6911771328.

The previous prime is 12352981637. The next prime is 12352981691. The reversal of 12352981683 is 38618925321.

It is not a de Polignac number, because 12352981683 - 29 = 12352981171 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12352981183) by changing a digit.

It is a polite number, since it can be written in 53 ways as a sum of consecutive naturals, for example, 119931810 + ... + 119931912.

Almost surely, 212352981683 is an apocalyptic number.

12352981683 is a deficient number, since it is larger than the sum of its proper divisors (7214398521).

12352981683 is an frugal number, since it uses more digits than its factorization.

12352981683 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 401 (or 202 counting only the distinct ones).

The product of its digits is 622080, while the sum is 48.

Multiplying 12352981683 by its sum of digits (48), we get a square (592943120784 = 7700282).

The spelling of 12352981683 in words is "twelve billion, three hundred fifty-two million, nine hundred eighty-one thousand, six hundred eighty-three".

Divisors: 1 3 7 21 49 89 103 147 267 309 623 721 1869 2163 4361 5047 7921 9167 10609 13083 15141 23763 27501 31827 55447 64169 74263 166341 192507 222789 388129 449183 519841 815863 944201 1164387 1347549 1559523 2447589 2832603 5711041 6609407 17133123 19828221 39977287 46265849 84033889 119931861 138797547 252101667 588237223 1764711669 4117660561 12352981683