| Base | Representation |
|---|---|
| bin | 100001011010001… |
| … | …0110110010111110 |
| 3 | 2220010101202212200 |
| 4 | 1002310112302332 |
| 5 | 4243440133433 |
| 6 | 303123212330 |
| 7 | 36531344100 |
| oct | 10264266276 |
| 9 | 2803352780 |
| 10 | 1121021118 |
| 11 | 525872838 |
| 12 | 2735170a6 |
| 13 | 14b330b09 |
| 14 | a8c51570 |
| 15 | 68639613 |
| hex | 42d16cbe |
1121021118 has 72 divisors (see below), whose sum is σ = 2833080120. Its totient is φ = 319425120.
The previous prime is 1121021117. The next prime is 1121021149. The reversal of 1121021118 is 8111201211.
1121021118 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.
It is a Harshad number since it is a multiple of its sum of digits (18).
It is a self number, because there is not a number n which added to its sum of digits gives 1121021118.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1121021117) by changing a digit.
It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 369813 + ... + 372831.
It is an arithmetic number, because the mean of its divisors is an integer number (39348335).
Almost surely, 21121021118 is an apocalyptic number.
1121021118 is a gapful number since it is divisible by the number (18) formed by its first and last digit.
It is a practical number, because each smaller number is the sum of distinct divisors of 1121021118, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1416540060).
1121021118 is an abundant number, since it is smaller than the sum of its proper divisors (1712059002).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1121021118 is a wasteful number, since it uses less digits than its factorization.
1121021118 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3462 (or 3452 counting only the distinct ones).
The product of its (nonzero) digits is 32, while the sum is 18.
The square root of 1121021118 is about 33481.6534537947. The cubic root of 1121021118 is about 1038.8143286240.
Adding to 1121021118 its reverse (8111201211), we get a palindrome (9232222329).
The spelling of 1121021118 in words is "one billion, one hundred twenty-one million, twenty-one thousand, one hundred eighteen".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.088 sec. • engine limits •