Base | Representation |
---|---|
bin | 111101000110001… |
… | …011101001101001 |
3 | 2122102202221212021 |
4 | 331012023221221 |
5 | 4044401441021 |
6 | 245413544441 |
7 | 34254421606 |
oct | 7506135151 |
9 | 2572687767 |
10 | 1025030761 |
11 | 48666a867 |
12 | 247345121 |
13 | 1344923a1 |
14 | 9a1c56ad |
15 | 5eec7c41 |
hex | 3d18ba69 |
1025030761 has 2 divisors, whose sum is σ = 1025030762. Its totient is φ = 1025030760.
The previous prime is 1025030731. The next prime is 1025030771. The reversal of 1025030761 is 1670305201.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 972192400 + 52838361 = 31180^2 + 7269^2 .
It is a cyclic number.
It is not a de Polignac number, because 1025030761 - 25 = 1025030729 is a prime.
It is not a weakly prime, because it can be changed into another prime (1025030731) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 512515380 + 512515381.
It is an arithmetic number, because the mean of its divisors is an integer number (512515381).
Almost surely, 21025030761 is an apocalyptic number.
It is an amenable number.
1025030761 is a deficient number, since it is larger than the sum of its proper divisors (1).
1025030761 is an equidigital number, since it uses as much as digits as its factorization.
1025030761 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 1260, while the sum is 25.
The square root of 1025030761 is about 32016.1015896689. The cubic root of 1025030761 is about 1008.2749237633.
Adding to 1025030761 its reverse (1670305201), we get a palindrome (2695335962).
The spelling of 1025030761 in words is "one billion, twenty-five million, thirty thousand, seven hundred sixty-one".
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