| Base | Representation |
|---|---|
| bin | 101010011001… |
| … | …101001110000 |
| 3 | 202220201002010 |
| 4 | 222121221300 |
| 5 | 10321140440 |
| 6 | 1034122520 |
| 7 | 163322412 |
| oct | 52315160 |
| 9 | 22821063 |
| 10 | 11115120 |
| 11 | 6301a55 |
| 12 | 3880440 |
| 13 | 23c22c3 |
| 14 | 16949b2 |
| 15 | e98580 |
| hex | a99a70 |
11115120 has 80 divisors (see below), whose sum is σ = 35667360. Its totient is φ = 2860032.
The previous prime is 11115119. The next prime is 11115131. The reversal of 11115120 is 2151111.
It is a tau number, because it is divible by the number of its divisors (80).
It is a super-2 number, since 2×111151202 = 247091785228800, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (12).
It is a junction number, because it is equal to n+sod(n) for n = 11115096 and 11115105.
It is a congruent number.
It is an unprimeable number.
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 15 ways as a sum of consecutive naturals, for example, 6162 + ... + 7758.
It is an arithmetic number, because the mean of its divisors is an integer number (445842).
Almost surely, 211115120 is an apocalyptic number.
11115120 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 11115120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17833680).
11115120 is an abundant number, since it is smaller than the sum of its proper divisors (24552240).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
11115120 is a wasteful number, since it uses less digits than its factorization.
11115120 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1642 (or 1636 counting only the distinct ones).
The product of its (nonzero) digits is 10, while the sum is 12.
The square root of 11115120 is about 3333.9346124362. The cubic root of 11115120 is about 223.1711502903.
Adding to 11115120 its reverse (2151111), we get a palindrome (13266231).
The spelling of 11115120 in words is "eleven million, one hundred fifteen thousand, one hundred twenty".
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