Base | Representation |
---|---|
bin | 10111010010001000… |
… | …10000000011011010 |
3 | 1012021011012220210102 |
4 | 23221010100003122 |
5 | 201100013442000 |
6 | 5424213215402 |
7 | 621523303403 |
oct | 135104200332 |
9 | 35234186712 |
10 | 12500140250 |
11 | 5335004424 |
12 | 250a331562 |
13 | 12429686c0 |
14 | 86820c9aa |
15 | 4d26153d5 |
hex | 2e91100da |
12500140250 has 32 divisors (see below), whose sum is σ = 25200289296. Its totient is φ = 4615435200.
The previous prime is 12500140243. The next prime is 12500140253. The reversal of 12500140250 is 5204100521.
It can be written as a sum of positive squares in 8 ways, for example, as 1584278809 + 10915861441 = 39803^2 + 104479^2 .
It is not an unprimeable number, because it can be changed into a prime (12500140253) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1919849 + ... + 1926348.
Almost surely, 212500140250 is an apocalyptic number.
12500140250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
12500140250 is an abundant number, since it is smaller than the sum of its proper divisors (12700149046).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12500140250 is a wasteful number, since it uses less digits than its factorization.
12500140250 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3846227 (or 3846217 counting only the distinct ones).
The product of its (nonzero) digits is 400, while the sum is 20.
Adding to 12500140250 its reverse (5204100521), we get a palindrome (17704240771).
The spelling of 12500140250 in words is "twelve billion, five hundred million, one hundred forty thousand, two hundred fifty".
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