Base | Representation |
---|---|
bin | 100001000111010… |
… | …0011010110111100 |
3 | 2212102202021212222 |
4 | 1002032203112330 |
5 | 4233421023400 |
6 | 302130544512 |
7 | 36351200651 |
oct | 10216432674 |
9 | 2772667788 |
10 | 1111111100 |
11 | 520214240 |
12 | 270138138 |
13 | 1492711b8 |
14 | a77d1c28 |
15 | 6782d185 |
hex | 423a35bc |
1111111100 has 144 divisors (see below), whose sum is σ = 2712388896. Its totient is φ = 391680000.
The previous prime is 1111111097. The next prime is 1111111121. The reversal of 1111111100 is 11111111.
1111111100 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.
It is a nialpdrome in base 10.
It is a zygodrome in base 10.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8110232 + ... + 8110368.
It is an arithmetic number, because the mean of its divisors is an integer number (18836034).
Almost surely, 21111111100 is an apocalyptic number.
1111111100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 1111111100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1356194448).
1111111100 is an abundant number, since it is smaller than the sum of its proper divisors (1601277796).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1111111100 is a wasteful number, since it uses less digits than its factorization.
1111111100 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 336 (or 329 counting only the distinct ones).
The product of its (nonzero) digits is 1, while the sum is 8.
The square root of 1111111100 is about 33333.3331666667. Note that the first 3 decimals coincide. The cubic root of 1111111100 is about 1035.7441651988.
Adding to 1111111100 its reverse (11111111), we get a palindrome (1122222211).
1111111100 divided by its reverse (11111111) gives a square (100 = 102).
It can be divided in two parts, 111111 and 1100, that added together give a palindrome (112211).
The spelling of 1111111100 in words is "one billion, one hundred eleven million, one hundred eleven thousand, one hundred".
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