Base | Representation |
---|---|
bin | 100000001101000… |
… | …0100011100001101 |
3 | 2210022021221021100 |
4 | 1000122010130031 |
5 | 4203111411012 |
6 | 255120253313 |
7 | 35530512432 |
oct | 10032043415 |
9 | 2708257240 |
10 | 1080575757 |
11 | 504a58618 |
12 | 261a71239 |
13 | 142b3c651 |
14 | a3723b89 |
15 | 64cea8dc |
hex | 4068470d |
1080575757 has 24 divisors (see below), whose sum is σ = 1616261400. Its totient is φ = 694850688.
The previous prime is 1080575729. The next prime is 1080575827. The reversal of 1080575757 is 7575750801.
1080575757 is a `hidden beast` number, since 1 + 0 + 8 + 0 + 575 + 75 + 7 = 666.
It can be written as a sum of positive squares in 4 ways, for example, as 57471561 + 1023104196 = 7581^2 + 31986^2 .
It is not a de Polignac number, because 1080575757 - 26 = 1080575693 is a prime.
It is a super-2 number, since 2×10805757572 = 2335287933232246098, which contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1080575357) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 451119 + ... + 453507.
It is an arithmetic number, because the mean of its divisors is an integer number (67344225).
Almost surely, 21080575757 is an apocalyptic number.
It is an amenable number.
1080575757 is a deficient number, since it is larger than the sum of its proper divisors (535685643).
1080575757 is a wasteful number, since it uses less digits than its factorization.
1080575757 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 4157 (or 4154 counting only the distinct ones).
The product of its (nonzero) digits is 343000, while the sum is 45.
The square root of 1080575757 is about 32872.1121469248. The cubic root of 1080575757 is about 1026.1678561021.
The spelling of 1080575757 in words is "one billion, eighty million, five hundred seventy-five thousand, seven hundred fifty-seven".
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