Base | Representation |
---|---|
bin | 10111010101110011… |
… | …11110001111101111 |
3 | 1012100022021202211100 |
4 | 23222321332033233 |
5 | 201130414002203 |
6 | 5431234454143 |
7 | 622346513403 |
oct | 135271761757 |
9 | 35308252740 |
10 | 12531000303 |
11 | 5350471aa8 |
12 | 2518734353 |
13 | 1249181ca3 |
14 | 86c363103 |
15 | 4d51adea3 |
hex | 2eae7e3ef |
12531000303 has 12 divisors (see below), whose sum is σ = 18329452960. Its totient is φ = 8248252896.
The previous prime is 12531000301. The next prime is 12531000329. The reversal of 12531000303 is 30300013521.
It is not a de Polignac number, because 12531000303 - 21 = 12531000301 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12531000301) 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, 8811526 + ... + 8812947.
Almost surely, 212531000303 is an apocalyptic number.
12531000303 is a deficient number, since it is larger than the sum of its proper divisors (5798452657).
12531000303 is a wasteful number, since it uses less digits than its factorization.
12531000303 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 17624558 (or 17624555 counting only the distinct ones).
The product of its (nonzero) digits is 270, while the sum is 18.
Adding to 12531000303 its reverse (30300013521), we get a palindrome (42831013824).
The spelling of 12531000303 in words is "twelve billion, five hundred thirty-one million, three hundred three", and thus it is an aban number.
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