Base | Representation |
---|---|
bin | 10100101100100011… |
… | …00001100110111100 |
3 | 1001200100111221000100 |
4 | 22112101201212330 |
5 | 140223421023400 |
6 | 5034313401100 |
7 | 542225612625 |
oct | 122621414674 |
9 | 31610457010 |
10 | 11111111100 |
11 | 4791a29251 |
12 | 21a1109190 |
13 | 1080c5b66b |
14 | 775954a4c |
15 | 4506db100 |
hex | 2964619bc |
11111111100 has 108 divisors (see below), whose sum is σ = 35768542264. Its totient is φ = 2882874240.
The previous prime is 11111111059. The next prime is 11111111113. The reversal of 11111111100 is 111111111.
It is a Harshad number since it is a multiple of its sum of digits (9).
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 35 ways as a sum of consecutive naturals, for example, 133534 + ... + 200133.
Almost surely, 211111111100 is an apocalyptic number.
11111111100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
11111111100 is an abundant number, since it is smaller than the sum of its proper divisors (24657431164).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
11111111100 is a wasteful number, since it uses less digits than its factorization.
11111111100 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 333724 (or 333714 counting only the distinct ones).
The product of its (nonzero) digits is 1, while the sum is 9.
Adding to 11111111100 its reverse (111111111), we get a palindrome (11222222211).
11111111100 divided by its reverse (111111111) gives a square (100 = 102).
It can be divided in two parts, 11 and 111111100, that added together give a palindrome (111111111).
The spelling of 11111111100 in words is "eleven billion, one hundred eleven million, one hundred eleven thousand, one hundred".
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