| Base | Representation |
|---|---|
| bin | 111011100111001… |
| … | …010011010010000 |
| 3 | 2120200220110110120 |
| 4 | 323213022122100 |
| 5 | 4022012401000 |
| 6 | 243124030240 |
| 7 | 33532616403 |
| oct | 7347123220 |
| 9 | 2520813416 |
| 10 | 1000122000 |
| 11 | 4735a7509 |
| 12 | 23ab32380 |
| 13 | 12c280887 |
| 14 | 96b7dd3a |
| 15 | 5cc076a0 |
| hex | 3b9ca690 |
1000122000 has 320 divisors, whose sum is σ = 3515965440. Its totient is φ = 243648000.
The previous prime is 1000121957. The next prime is 1000122007. The reversal of 1000122000 is 2210001.
It is a happy number.
1000122000 is digitally balanced in base 2, 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 (6).
It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.
It is a self number, because there is not a number n which added to its sum of digits gives 1000122000.
It is not an unprimeable number, because it can be changed into a prime (1000122007) by changing a digit.
It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3533859 + ... + 3534141.
It is an arithmetic number, because the mean of its divisors is an integer number (10987392).
Almost surely, 21000122000 is an apocalyptic number.
1000122000 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 1000122000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1757982720).
1000122000 is an abundant number, since it is smaller than the sum of its proper divisors (2515843440).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1000122000 is a wasteful number, since it uses less digits than its factorization.
1000122000 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 359 (or 343 counting only the distinct ones).
The product of its (nonzero) digits is 4, while the sum is 6.
The square root of 1000122000 is about 31624.7055322259. The cubic root of 1000122000 is about 1000.0406650130.
Adding to 1000122000 its reverse (2210001), we get a palindrome (1002332001).
The spelling of 1000122000 in words is "one billion, one hundred twenty-two thousand".
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