Base | Representation |
---|---|
bin | 10110100110000101… |
… | …01001001011011101 |
3 | 1011022101220100110212 |
4 | 23103002221023131 |
5 | 144320414321000 |
6 | 5323413142205 |
7 | 606415366301 |
oct | 132302511335 |
9 | 34271810425 |
10 | 12130620125 |
11 | 5165467498 |
12 | 242662a965 |
13 | 11b4239640 |
14 | 8310ddd01 |
15 | 4aee72c35 |
hex | 2d30a92dd |
12130620125 has 64 divisors (see below), whose sum is σ = 16890793920. Its totient is φ = 8641152000.
The previous prime is 12130620121. The next prime is 12130620127. The reversal of 12130620125 is 52102603121.
12130620125 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It can be written as a sum of positive squares in 32 ways, for example, as 12125753689 + 4866436 = 110117^2 + 2206^2 .
It is not a de Polignac number, because 12130620125 - 22 = 12130620121 is a prime.
It is a self number, because there is not a number n which added to its sum of digits gives 12130620125.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12130620121) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5252471 + ... + 5254779.
It is an arithmetic number, because the mean of its divisors is an integer number (263918655).
Almost surely, 212130620125 is an apocalyptic number.
It is an amenable number.
12130620125 is a deficient number, since it is larger than the sum of its proper divisors (4760173795).
12130620125 is a wasteful number, since it uses less digits than its factorization.
12130620125 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2451 (or 2441 counting only the distinct ones).
The product of its (nonzero) digits is 720, while the sum is 23.
The spelling of 12130620125 in words is "twelve billion, one hundred thirty million, six hundred twenty thousand, one hundred twenty-five".
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