| Base | Representation |
|---|---|
| bin | 100001011100011… |
| … | …1001111000101100 |
| 3 | 2220012122100102000 |
| 4 | 1002320321320230 |
| 5 | 4244241312140 |
| 6 | 303204532300 |
| 7 | 36544441146 |
| oct | 10270717054 |
| 9 | 2805570360 |
| 10 | 1122213420 |
| 11 | 526507609 |
| 12 | 2739b1090 |
| 13 | 14b65a713 |
| 14 | a9081c96 |
| 15 | 687c2a30 |
| hex | 42e39e2c |
1122213420 has 96 divisors (see below), whose sum is σ = 3496651200. Its totient is φ = 298801152.
The previous prime is 1122213413. The next prime is 1122213431. The reversal of 1122213420 is 243122211.
It is a happy number.
1122213420 is a `hidden beast` number, since 11 + 22 + 213 + 420 = 666.
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 = 1122213393 and 1122213402.
It is an unprimeable number.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 500542 + ... + 502778.
It is an arithmetic number, because the mean of its divisors is an integer number (36423450).
Almost surely, 21122213420 is an apocalyptic number.
1122213420 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 1122213420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1748325600).
1122213420 is an abundant number, since it is smaller than the sum of its proper divisors (2374437780).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1122213420 is a wasteful number, since it uses less digits than its factorization.
1122213420 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3184 (or 3176 counting only the distinct ones).
The product of its (nonzero) digits is 192, while the sum is 18.
The square root of 1122213420 is about 33499.4540254017. The cubic root of 1122213420 is about 1039.1824874775.
Adding to 1122213420 its reverse (243122211), we get a palindrome (1365335631).
It can be divided in two parts, 11222 and 13420, that added together give a palindrome (24642).
The spelling of 1122213420 in words is "one billion, one hundred twenty-two million, two hundred thirteen thousand, four hundred twenty".
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