Base | Representation |
---|---|
bin | 111101011101110… |
… | …010011110100011 |
3 | 2122212102100200021 |
4 | 331131302132203 |
5 | 4102443002412 |
6 | 250154334311 |
7 | 34361134462 |
oct | 7535623643 |
9 | 2585370607 |
10 | 1031219107 |
11 | 48a1071a6 |
12 | 24942a397 |
13 | 13584b029 |
14 | 9ad569d9 |
15 | 607eb607 |
hex | 3d7727a3 |
1031219107 has 2 divisors, whose sum is σ = 1031219108. Its totient is φ = 1031219106.
The previous prime is 1031219093. The next prime is 1031219113. The reversal of 1031219107 is 7019121301.
It is a strong prime.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-1031219107 is a prime.
It is not a weakly prime, because it can be changed into another prime (1031210107) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 515609553 + 515609554.
It is an arithmetic number, because the mean of its divisors is an integer number (515609554).
Almost surely, 21031219107 is an apocalyptic number.
1031219107 is a deficient number, since it is larger than the sum of its proper divisors (1).
1031219107 is an equidigital number, since it uses as much as digits as its factorization.
1031219107 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 378, while the sum is 25.
The square root of 1031219107 is about 32112.6004397028. The cubic root of 1031219107 is about 1010.2999164869.
The spelling of 1031219107 in words is "one billion, thirty-one million, two hundred nineteen thousand, one hundred seven".
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