| Base | Representation |
|---|---|
| bin | 111011101110010… |
| … | …100111010000000 |
| 3 | 2120211102212121010 |
| 4 | 323232110322000 |
| 5 | 4023003000000 |
| 6 | 243232200520 |
| 7 | 33554600541 |
| oct | 7356247200 |
| 9 | 2524385533 |
| 10 | 1002000000 |
| 11 | 47466a481 |
| 12 | 23b699140 |
| 13 | 12c78a611 |
| 14 | 9710c4c8 |
| 15 | 5ce78d50 |
| hex | 3bb94e80 |
1002000000 has 224 divisors, whose sum is σ = 3346832160. Its totient is φ = 265600000.
The previous prime is 1001999989. The next prime is 1002000001. The reversal of 1002000000 is 2001.
1002000000 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 (3).
It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.
It is not an unprimeable number, because it can be changed into a prime (1002000001) by changing a digit.
It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 5999917 + ... + 6000083.
It is an arithmetic number, because the mean of its divisors is an integer number (14941215).
Almost surely, 21002000000 is an apocalyptic number.
1002000000 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 1002000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1673416080).
1002000000 is an abundant number, since it is smaller than the sum of its proper divisors (2344832160).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1002000000 is an frugal number, since it uses more digits than its factorization.
1002000000 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 214 (or 177 counting only the distinct ones).
The product of its (nonzero) digits is 2, while the sum is 3.
The square root of 1002000000 is about 31654.3835826888. The cubic root of 1002000000 is about 1000.6662227154. Note that the first 3 decimals are identical.
Adding to 1002000000 its reverse (2001), we get a palindrome (1002002001).
The spelling of 1002000000 in words is "one billion, two million", and thus it is an aban number and an uban number.
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