| Base | Representation |
|---|---|
| bin | 1101010000011… |
| … | …00111011100100 |
| 3 | 21202020122111100 |
| 4 | 12220030323210 |
| 5 | 211431431040 |
| 6 | 15011240100 |
| 7 | 2520126066 |
| oct | 650147344 |
| 9 | 252218440 |
| 10 | 111202020 |
| 11 | 578527a6 |
| 12 | 312a9030 |
| 13 | 1a066517 |
| 14 | 10aa9736 |
| 15 | 9b68b30 |
| hex | 6a0cee4 |
111202020 has 144 divisors (see below), whose sum is σ = 353545920. Its totient is φ = 28263168.
The previous prime is 111202019. The next prime is 111202027. The reversal of 111202020 is 20202111.
It is a Harshad number since it is a multiple of its sum of digits (9).
It is a junction number, because it is equal to n+sod(n) for n = 111201993 and 111202011.
It is not an unprimeable number, because it can be changed into a prime (111202027) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 392799 + ... + 393081.
It is an arithmetic number, because the mean of its divisors is an integer number (2455180).
Almost surely, 2111202020 is an apocalyptic number.
111202020 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 111202020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (176772960).
111202020 is an abundant number, since it is smaller than the sum of its proper divisors (242343900).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
111202020 is a wasteful number, since it uses less digits than its factorization.
111202020 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 394 (or 389 counting only the distinct ones).
The product of its (nonzero) digits is 8, while the sum is 9.
The square root of 111202020 is about 10545.2368394456. The cubic root of 111202020 is about 480.8809343332.
Adding to 111202020 its reverse (20202111), we get a palindrome (131404131).
Subtracting from 111202020 its reverse (20202111), we obtain a palindrome (90999909).
The spelling of 111202020 in words is "one hundred eleven million, two hundred two thousand, twenty".
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