Base | Representation |
---|---|
bin | 10110100111110011… |
… | …00000000000101010 |
3 | 1011100101221221121222 |
4 | 23103321200000222 |
5 | 144333110003430 |
6 | 5325045302042 |
7 | 606651541460 |
oct | 132371400052 |
9 | 34311857558 |
10 | 12145000490 |
11 | 5172599697 |
12 | 242b404922 |
13 | 11b7202c2c |
14 | 832da4830 |
15 | 4b13639e5 |
hex | 2d3e6002a |
12145000490 has 32 divisors (see below), whose sum is σ = 25114834944. Its totient is φ = 4142194560.
The previous prime is 12145000489. The next prime is 12145000499. The reversal of 12145000490 is 9400054121.
It is not an unprimeable number, because it can be changed into a prime (12145000499) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 440819 + ... + 467558.
It is an arithmetic number, because the mean of its divisors is an integer number (784838592).
Almost surely, 212145000490 is an apocalyptic number.
12145000490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
12145000490 is an abundant number, since it is smaller than the sum of its proper divisors (12969834454).
12145000490 is a wasteful number, since it uses less digits than its factorization.
12145000490 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 908582.
The product of its (nonzero) digits is 1440, while the sum is 26.
The spelling of 12145000490 in words is "twelve billion, one hundred forty-five million, four hundred ninety", and thus it is an aban number.
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