Base | Representation |
---|---|
bin | 100100001001110… |
… | …1010011010101001 |
3 | 10010112200120121002 |
4 | 1020103222122221 |
5 | 4441024122100 |
6 | 320213124345 |
7 | 42030204404 |
oct | 11023523251 |
9 | 3115616532 |
10 | 1213114025 |
11 | 572853582 |
12 | 29a3296b5 |
13 | 164436566 |
14 | b7184d3b |
15 | 7177b2d5 |
hex | 484ea6a9 |
1213114025 has 6 divisors (see below), whose sum is σ = 1504261422. Its totient is φ = 970491200.
The previous prime is 1213114009. The next prime is 1213114031. The reversal of 1213114025 is 5204113121.
It can be written as a sum of positive squares in 3 ways, for example, as 330548761 + 882565264 = 18181^2 + 29708^2 .
It is not a de Polignac number, because 1213114025 - 24 = 1213114009 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 1213113988 and 1213114006.
It is an unprimeable number.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 24262256 + ... + 24262305.
It is an arithmetic number, because the mean of its divisors is an integer number (250710237).
Almost surely, 21213114025 is an apocalyptic number.
It is an amenable number.
1213114025 is a deficient number, since it is larger than the sum of its proper divisors (291147397).
1213114025 is an equidigital number, since it uses as much as digits as its factorization.
1213114025 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 48524571 (or 48524566 counting only the distinct ones).
The product of its (nonzero) digits is 240, while the sum is 20.
The square root of 1213114025 is about 34829.7864621648. The cubic root of 1213114025 is about 1066.5155892260.
Adding to 1213114025 its reverse (5204113121), we get a palindrome (6417227146).
The spelling of 1213114025 in words is "one billion, two hundred thirteen million, one hundred fourteen thousand, twenty-five".
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