| Base | Representation |
|---|---|
| bin | 111011100111100… |
| … | …010111001110000 |
| 3 | 2120201002120002010 |
| 4 | 323213202321300 |
| 5 | 4022024103240 |
| 6 | 243130122520 |
| 7 | 33533515026 |
| oct | 7347427160 |
| 9 | 2521076063 |
| 10 | 1000222320 |
| 11 | 473665919 |
| 12 | 23ab80440 |
| 13 | 12c2b7436 |
| 14 | 96ba8716 |
| 15 | 5cc27280 |
| hex | 3b9e2e70 |
1000222320 has 160 divisors (see below), whose sum is σ = 3278004480. Its totient is φ = 251596800.
The previous prime is 1000222309. The next prime is 1000222331. The reversal of 1000222320 is 232220001.
It is an interprime number because it is at equal distance from previous prime (1000222309) and next prime (1000222331).
It is a Harshad number since it is a multiple of its sum of digits (12).
It is a junction number, because it is equal to n+sod(n) for n = 1000222296 and 1000222305.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1828287 + ... + 1828833.
It is an arithmetic number, because the mean of its divisors is an integer number (20487528).
Almost surely, 21000222320 is an apocalyptic number.
1000222320 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 1000222320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1639002240).
1000222320 is an abundant number, since it is smaller than the sum of its proper divisors (2277782160).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1000222320 is a wasteful number, since it uses less digits than its factorization.
1000222320 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 983 (or 977 counting only the distinct ones).
The product of its (nonzero) digits is 48, while the sum is 12.
The square root of 1000222320 is about 31626.2915941784. The cubic root of 1000222320 is about 1000.0741011755.
Adding to 1000222320 its reverse (232220001), we get a palindrome (1232442321).
The spelling of 1000222320 in words is "one billion, two hundred twenty-two thousand, three hundred twenty".
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