| Base | Representation |
|---|---|
| bin | 1110011100000… |
| … | …11011001011000 |
| 3 | 22102220202111101 |
| 4 | 13032003121120 |
| 5 | 222001440230 |
| 6 | 20004041144 |
| 7 | 3000353323 |
| oct | 716033130 |
| 9 | 272822441 |
| 10 | 121124440 |
| 11 | 6240a648 |
| 12 | 346931b4 |
| 13 | 1c12b988 |
| 14 | 1212d7ba |
| 15 | a978aca |
| hex | 7383658 |
121124440 has 96 divisors (see below), whose sum is σ = 295993440. Its totient is φ = 44520960.
The previous prime is 121124363. The next prime is 121124441. The reversal of 121124440 is 44421121.
It is a super-2 number, since 2×1211244402 = 29342259930627200, which contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (121124441) 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 23 ways as a sum of consecutive naturals, for example, 884052 + ... + 884188.
It is an arithmetic number, because the mean of its divisors is an integer number (3083265).
Almost surely, 2121124440 is an apocalyptic number.
121124440 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 121124440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (147996720).
121124440 is an abundant number, since it is smaller than the sum of its proper divisors (174869000).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
121124440 is a wasteful number, since it uses less digits than its factorization.
121124440 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 233 (or 198 counting only the distinct ones).
The product of its (nonzero) digits is 256, while the sum is 19.
The square root of 121124440 is about 11005.6549100905. The cubic root of 121124440 is about 494.7782430151.
Adding to 121124440 its reverse (44421121), we get a palindrome (165545561).
It can be divided in two parts, 1211 and 24440, that added together give a triangular number (25651 = T226).
The spelling of 121124440 in words is "one hundred twenty-one million, one hundred twenty-four thousand, four hundred forty".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.061 sec. • engine limits •