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12139743146 = 217419852151
BaseRepresentation
bin10110100111001010…
…11100011110101010
31011100001001211220112
423103211130132222
5144330233240041
65324340454322
7606556054106
oct132345343652
934301054815
1012139743146
11516a628783
1224296aa3a2
1311b60b1c8b
148323d6906
154b0b75deb
hex2d395c7aa

12139743146 has 16 divisors (see below), whose sum is σ = 19326807360. Its totient is φ = 5699179200.

The previous prime is 12139743107. The next prime is 12139743151. The reversal of 12139743146 is 64134793121.

It is a Curzon 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 7 ways as a sum of consecutive naturals, for example, 411830 + ... + 440321.

It is an arithmetic number, because the mean of its divisors is an integer number (1207925460).

Almost surely, 212139743146 is an apocalyptic number.

12139743146 is a deficient number, since it is larger than the sum of its proper divisors (7187064214).

12139743146 is a wasteful number, since it uses less digits than its factorization.

12139743146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 852589.

The product of its digits is 108864, while the sum is 41.

The spelling of 12139743146 in words is "twelve billion, one hundred thirty-nine million, seven hundred forty-three thousand, one hundred forty-six".

Divisors: 1 2 17 34 419 838 7123 14246 852151 1704302 14486567 28973134 357051269 714102538 6069871573 12139743146