Base | Representation |
---|---|
bin | 100110010101000… |
… | …1011010111110001 |
3 | 10022122001220212210 |
4 | 1030222023113301 |
5 | 10113222000131 |
6 | 331342042333 |
7 | 43604611455 |
oct | 11452132761 |
9 | 3278056783 |
10 | 1286125041 |
11 | 5aaa90863 |
12 | 2ba8793a9 |
13 | 1765ba746 |
14 | c2b4c665 |
15 | 77d9e146 |
hex | 4ca8b5f1 |
1286125041 has 4 divisors (see below), whose sum is σ = 1714833392. Its totient is φ = 857416692.
The previous prime is 1286125013. The next prime is 1286125051. The reversal of 1286125041 is 1405216821.
1286125041 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.
It is not a de Polignac number, because 1286125041 - 214 = 1286108657 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (1286125051) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 214354171 + ... + 214354176.
It is an arithmetic number, because the mean of its divisors is an integer number (428708348).
Almost surely, 21286125041 is an apocalyptic number.
It is an amenable number.
1286125041 is a deficient number, since it is larger than the sum of its proper divisors (428708351).
1286125041 is an equidigital number, since it uses as much as digits as its factorization.
1286125041 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 428708350.
The product of its (nonzero) digits is 3840, while the sum is 30.
The square root of 1286125041 is about 35862.5855314421. The cubic root of 1286125041 is about 1087.4961581051.
The spelling of 1286125041 in words is "one billion, two hundred eighty-six million, one hundred twenty-five thousand, forty-one".
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