| Base | Representation |
|---|---|
| bin | 100001011110001… |
| … | …1010011100100100 |
| 3 | 2220021101002010200 |
| 4 | 1002330122130210 |
| 5 | 4300010230340 |
| 6 | 303240350500 |
| 7 | 36555321606 |
| oct | 10274323444 |
| 9 | 2807332120 |
| 10 | 1123133220 |
| 11 | 526a85680 |
| 12 | 274175430 |
| 13 | 14b8c0291 |
| 14 | a9241176 |
| 15 | 68905330 |
| hex | 42f1a724 |
1123133220 has 288 divisors, whose sum is σ = 4006993536. Its totient is φ = 251596800.
The previous prime is 1123133191. The next prime is 1123133233. The reversal of 1123133220 is 223313211.
It is a super-2 number, since 2×11231332202 = 2522856459735136800, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (18).
It is a junction number, because it is equal to n+sod(n) for n = 1123133193 and 1123133202.
It is an unprimeable number.
It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2052987 + ... + 2053533.
It is an arithmetic number, because the mean of its divisors is an integer number (13913172).
Almost surely, 21123133220 is an apocalyptic number.
1123133220 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 1123133220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2003496768).
1123133220 is an abundant number, since it is smaller than the sum of its proper divisors (2883860316).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1123133220 is a wasteful number, since it uses less digits than its factorization.
1123133220 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 651 (or 646 counting only the distinct ones).
The product of its (nonzero) digits is 216, while the sum is 18.
The square root of 1123133220 is about 33513.1797954178. The cubic root of 1123133220 is about 1039.4663250580.
Adding to 1123133220 its reverse (223313211), we get a palindrome (1346446431).
Subtracting from 1123133220 its reverse (223313211), we obtain a square (899820009 = 299972).
The spelling of 1123133220 in words is "one billion, one hundred twenty-three million, one hundred thirty-three thousand, two hundred twenty".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.069 sec. • engine limits •