Base | Representation |
---|---|
bin | 10110100111110011… |
… | …00000000000000010 |
3 | 1011100101221221120111 |
4 | 23103321200000002 |
5 | 144333110003300 |
6 | 5325045301534 |
7 | 606651541402 |
oct | 132371400002 |
9 | 34311857514 |
10 | 12145000450 |
11 | 5172599660 |
12 | 242b4048aa |
13 | 11b7202bcb |
14 | 832da4802 |
15 | 4b13639ba |
hex | 2d3e60002 |
12145000450 has 96 divisors (see below), whose sum is σ = 26087705280. Its totient is φ = 4160160000.
The previous prime is 12145000433. The next prime is 12145000463. The reversal of 12145000450 is 5400054121.
It is a Harshad number since it is a multiple of its sum of digits (22).
It is an unprimeable number.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1888240 + ... + 1894660.
It is an arithmetic number, because the mean of its divisors is an integer number (271746930).
Almost surely, 212145000450 is an apocalyptic number.
12145000450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
12145000450 is an abundant number, since it is smaller than the sum of its proper divisors (13942704830).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12145000450 is a wasteful number, since it uses less digits than its factorization.
12145000450 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 6644 (or 6639 counting only the distinct ones).
The product of its (nonzero) digits is 800, while the sum is 22.
Adding to 12145000450 its reverse (5400054121), we get a palindrome (17545054571).
The spelling of 12145000450 in words is "twelve billion, one hundred forty-five million, four hundred fifty", and thus it is an aban number.
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