Base | Representation |
---|---|
bin | 10111111111100111… |
… | …00010001100101101 |
3 | 1020020202001210222000 |
4 | 23333303202030231 |
5 | 202340144242333 |
6 | 5530122042513 |
7 | 634135040346 |
oct | 137763421455 |
9 | 36222053860 |
10 | 12881634093 |
11 | 551038a399 |
12 | 25b6049439 |
13 | 12a39ca7c3 |
14 | 8a2b570cd |
15 | 505d70713 |
hex | 2ffce232d |
12881634093 has 32 divisors (see below), whose sum is σ = 19364083200. Its totient is φ = 8461905408.
The previous prime is 12881634089. The next prime is 12881634107. The reversal of 12881634093 is 39043618821.
12881634093 is a `hidden beast` number, since 1 + 2 + 8 + 8 + 1 + 634 + 0 + 9 + 3 = 666.
It is not a de Polignac number, because 12881634093 - 22 = 12881634089 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12881634083) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2553868 + ... + 2558906.
It is an arithmetic number, because the mean of its divisors is an integer number (605127600).
Almost surely, 212881634093 is an apocalyptic number.
It is an amenable number.
12881634093 is a deficient number, since it is larger than the sum of its proper divisors (6482449107).
12881634093 is a wasteful number, since it uses less digits than its factorization.
12881634093 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 6418 (or 6412 counting only the distinct ones).
The product of its (nonzero) digits is 248832, while the sum is 45.
The spelling of 12881634093 in words is "twelve billion, eight hundred eighty-one million, six hundred thirty-four thousand, ninety-three".
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