Base | Representation |
---|---|
bin | 11000000010010100… |
… | …01011100111100011 |
3 | 1020022022210210202200 |
4 | 30001022023213203 |
5 | 202412003120011 |
6 | 5532252544243 |
7 | 634532102133 |
oct | 140112134743 |
9 | 36268723680 |
10 | 12904348131 |
11 | 5522193824 |
12 | 2601782083 |
13 | 12a862136c |
14 | 8a5b8aac3 |
15 | 507d5a856 |
hex | 30128b9e3 |
12904348131 has 12 divisors (see below), whose sum is σ = 18692422008. Its totient is φ = 8578525824.
The previous prime is 12904348129. The next prime is 12904348139. The reversal of 12904348131 is 13184340921.
12904348131 is a `hidden beast` number, since 1 + 2 + 90 + 434 + 8 + 131 = 666.
It is not a de Polignac number, because 12904348131 - 21 = 12904348129 is a prime.
It is a super-2 number, since 2×129043481312 (a number of 21 digits) contains 22 as substring.
It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.
It is not an unprimeable number, because it can be changed into a prime (12904348139) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2027725 + ... + 2034078.
It is an arithmetic number, because the mean of its divisors is an integer number (1557701834).
Almost surely, 212904348131 is an apocalyptic number.
12904348131 is a deficient number, since it is larger than the sum of its proper divisors (5788073877).
12904348131 is a wasteful number, since it uses less digits than its factorization.
12904348131 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 4062162 (or 4062159 counting only the distinct ones).
The product of its (nonzero) digits is 20736, while the sum is 36.
The spelling of 12904348131 in words is "twelve billion, nine hundred four million, three hundred forty-eight thousand, one hundred thirty-one".
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