Base | Representation |
---|---|
bin | 111101011100111… |
… | …111010110000101 |
3 | 2122212000201101022 |
4 | 331130333112011 |
5 | 4102414302134 |
6 | 250150040525 |
7 | 34356303044 |
oct | 7534772605 |
9 | 2585021338 |
10 | 1031009669 |
11 | 489a83908 |
12 | 249349145 |
13 | 1357a68c1 |
14 | 9ad0055b |
15 | 607a952e |
hex | 3d73f585 |
1031009669 has 2 divisors, whose sum is σ = 1031009670. Its totient is φ = 1031009668.
The previous prime is 1031009641. The next prime is 1031009671. The reversal of 1031009669 is 9669001301.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 989857444 + 41152225 = 31462^2 + 6415^2 .
It is a cyclic number.
It is not a de Polignac number, because 1031009669 - 228 = 762574213 is a prime.
It is a super-2 number, since 2×10310096692 = 2125961875142979122, which contains 22 as substring.
Together with 1031009671, it forms a pair of twin primes.
It is a Chen prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (1031009269) 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, 515504834 + 515504835.
It is an arithmetic number, because the mean of its divisors is an integer number (515504835).
Almost surely, 21031009669 is an apocalyptic number.
It is an amenable number.
1031009669 is a deficient number, since it is larger than the sum of its proper divisors (1).
1031009669 is an equidigital number, since it uses as much as digits as its factorization.
1031009669 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 8748, while the sum is 35.
The square root of 1031009669 is about 32109.3392800288. The cubic root of 1031009669 is about 1010.2315154009.
The spelling of 1031009669 in words is "one billion, thirty-one million, nine thousand, six hundred sixty-nine".
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