Base | Representation |
---|---|
bin | 100110000000010… |
… | …1100010101010001 |
3 | 10021212121102010112 |
4 | 1030000230111101 |
5 | 10102431000001 |
6 | 330313011105 |
7 | 43413306014 |
oct | 11400542521 |
9 | 3255542115 |
10 | 1275250001 |
11 | 5a4933223 |
12 | 2b70b3a95 |
13 | 1742807cc |
14 | c151b37b |
15 | 76e51cbb |
hex | 4c02c551 |
1275250001 has 2 divisors, whose sum is σ = 1275250002. Its totient is φ = 1275250000.
The previous prime is 1275249971. The next prime is 1275250021. The reversal of 1275250001 is 1000525721.
It is a happy number.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 1169571601 + 105678400 = 34199^2 + 10280^2 .
It is a cyclic number.
It is not a de Polignac number, because 1275250001 - 210 = 1275248977 is a prime.
It is a Sophie Germain prime.
It is a Curzon number.
It is not a weakly prime, because it can be changed into another prime (1275250021) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 637625000 + 637625001.
It is an arithmetic number, because the mean of its divisors is an integer number (637625001).
Almost surely, 21275250001 is an apocalyptic number.
It is an amenable number.
1275250001 is a deficient number, since it is larger than the sum of its proper divisors (1).
1275250001 is an equidigital number, since it uses as much as digits as its factorization.
1275250001 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 700, while the sum is 23.
The square root of 1275250001 is about 35710.6426853396. The cubic root of 1275250001 is about 1084.4223109202.
Adding to 1275250001 its reverse (1000525721), we get a palindrome (2275775722).
The spelling of 1275250001 in words is "one billion, two hundred seventy-five million, two hundred fifty thousand, one".
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