Base | Representation |
---|---|
bin | 100000001101010… |
… | …0011010010000001 |
3 | 2210022112100120000 |
4 | 1000122203102001 |
5 | 4203124431311 |
6 | 255123110213 |
7 | 35531546634 |
oct | 10032432201 |
9 | 2708470500 |
10 | 1080702081 |
11 | 505034518 |
12 | 261b12369 |
13 | 142b84cb4 |
14 | a3757c1b |
15 | 64d23056 |
hex | 406a3481 |
1080702081 has 80 divisors (see below), whose sum is σ = 1770975360. Its totient is φ = 654635520.
The previous prime is 1080702071. The next prime is 1080702089. The reversal of 1080702081 is 1802070801.
It is not a de Polignac number, because 1080702081 - 215 = 1080669313 is a prime.
It is a super-2 number, since 2×10807020812 = 2335833975755461122, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (27).
It is a Curzon number.
It is not an unprimeable number, because it can be changed into a prime (1080702089) by changing a digit.
It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 4484121 + ... + 4484361.
It is an arithmetic number, because the mean of its divisors is an integer number (22137192).
Almost surely, 21080702081 is an apocalyptic number.
It is an amenable number.
1080702081 is a deficient number, since it is larger than the sum of its proper divisors (690273279).
1080702081 is a wasteful number, since it uses less digits than its factorization.
1080702081 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 388 (or 379 counting only the distinct ones).
The product of its (nonzero) digits is 896, while the sum is 27.
The square root of 1080702081 is about 32874.0335371247. The cubic root of 1080702081 is about 1026.2078423707.
Adding to 1080702081 its reverse (1802070801), we get a palindrome (2882772882).
The spelling of 1080702081 in words is "one billion, eighty million, seven hundred two thousand, eighty-one".
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