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12897774029694 = 2317831115214627
BaseRepresentation
bin1011101110101111111100…
…1111010100101101111110
31200200000102001022011211010
42323223333033110231332
53142304120122422234
643233053335140050
72500555602240501
oct273537717245576
950600361264733
1012897774029694
114122a08217214
121543812514626
13727340c535a8
143283814c7138
15175779d006e9
hexbbaff3d4b7e

12897774029694 has 32 divisors (see below), whose sum is σ = 27316221394176. Its totient is φ = 4045873345920.

The previous prime is 12897774029689. The next prime is 12897774029761. The reversal of 12897774029694 is 49692047779821.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6759592 + ... + 8455035.

It is an arithmetic number, because the mean of its divisors is an integer number (853631918568).

Almost surely, 212897774029694 is an apocalyptic number.

12897774029694 is an abundant number, since it is smaller than the sum of its proper divisors (14418447364482).

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

12897774029694 is a wasteful number, since it uses less digits than its factorization.

12897774029694 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15222960.

The product of its (nonzero) digits is 768144384, while the sum is 75.

The spelling of 12897774029694 in words is "twelve trillion, eight hundred ninety-seven billion, seven hundred seventy-four million, twenty-nine thousand, six hundred ninety-four".

Divisors: 1 2 3 6 17 34 51 102 8311 16622 24933 49866 141287 282574 423861 847722 15214627 30429254 45643881 91287762 258648659 517297318 775945977 1551891954 126448764997 252897529994 379346294991 758692589982 2149629004949 4299258009898 6448887014847 12897774029694