Base | Representation |
---|---|
bin | 111111110101101… |
… | …010100101101001 |
3 | 2202122100002122002 |
4 | 333311222211221 |
5 | 4143141021211 |
6 | 254135540345 |
7 | 35353425155 |
oct | 7765524551 |
9 | 2678302562 |
10 | 1071032681 |
11 | 4aa62a784 |
12 | 25a82a6b5 |
13 | 140b7aa64 |
14 | a235c065 |
15 | 6406303b |
hex | 3fd6a969 |
1071032681 has 2 divisors, whose sum is σ = 1071032682. Its totient is φ = 1071032680.
The previous prime is 1071032653. The next prime is 1071032689. The reversal of 1071032681 is 1862301701.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 1070598400 + 434281 = 32720^2 + 659^2 .
It is a cyclic number.
It is not a de Polignac number, because 1071032681 - 210 = 1071031657 is a prime.
It is a super-2 number, since 2×10710326812 = 2294222007540095522, which contains 22 as substring.
It is not a weakly prime, because it can be changed into another prime (1071032689) 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, 535516340 + 535516341.
It is an arithmetic number, because the mean of its divisors is an integer number (535516341).
Almost surely, 21071032681 is an apocalyptic number.
It is an amenable number.
1071032681 is a deficient number, since it is larger than the sum of its proper divisors (1).
1071032681 is an equidigital number, since it uses as much as digits as its factorization.
1071032681 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 2016, while the sum is 29.
The square root of 1071032681 is about 32726.6356504912. The cubic root of 1071032681 is about 1023.1380613117.
The spelling of 1071032681 in words is "one billion, seventy-one million, thirty-two thousand, six hundred eighty-one".
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