Base | Representation |
---|---|
bin | 111101011101011… |
… | …111100011100101 |
3 | 2122212021102100211 |
4 | 331131133203211 |
5 | 4102433012410 |
6 | 250152535421 |
7 | 34360362514 |
oct | 7535374345 |
9 | 2585242324 |
10 | 1031141605 |
11 | 48a063a4a |
12 | 2493b1571 |
13 | 135821980 |
14 | 9ad3667b |
15 | 607d368a |
hex | 3d75f8e5 |
1031141605 has 16 divisors (see below), whose sum is σ = 1333859184. Its totient is φ = 760711680.
The previous prime is 1031141581. The next prime is 1031141663. The reversal of 1031141605 is 5061411301.
It can be written as a sum of positive squares in 8 ways, for example, as 386083201 + 645058404 = 19649^2 + 25398^2 .
It is not a de Polignac number, because 1031141605 - 29 = 1031141093 is a prime.
It is a Duffinian number.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64075 + ... + 78535.
It is an arithmetic number, because the mean of its divisors is an integer number (83366199).
Almost surely, 21031141605 is an apocalyptic number.
It is an amenable number.
1031141605 is a deficient number, since it is larger than the sum of its proper divisors (302717579).
1031141605 is a wasteful number, since it uses less digits than its factorization.
1031141605 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 15576.
The product of its (nonzero) digits is 360, while the sum is 22.
The square root of 1031141605 is about 32111.3936944506. The cubic root of 1031141605 is about 1010.2746059183.
Adding to 1031141605 its reverse (5061411301), we get a palindrome (6092552906).
The spelling of 1031141605 in words is "one billion, thirty-one million, one hundred forty-one thousand, six hundred five".
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