| Base | Representation |
|---|---|
| bin | 111100001010111… |
| … | …0111111011000000 |
| 3 | 12012201002211022210 |
| 4 | 1320111313323000 |
| 5 | 13113331000000 |
| 6 | 532202102120 |
| 7 | 101014134243 |
| oct | 17025677300 |
| 9 | 5181084283 |
| 10 | 2019000000 |
| 11 | 946744646 |
| 12 | 4841aa940 |
| 13 | 26239a574 |
| 14 | 15220325a |
| 15 | bc3b7350 |
| hex | 78577ec0 |
2019000000 has 196 divisors, whose sum is σ = 6687258152. Its totient is φ = 537600000.
The previous prime is 2018999963. The next prime is 2019000037. The reversal of 2019000000 is 9102.
It is a happy number.
It is an interprime number because it is at equal distance from previous prime (2018999963) and next prime (2019000037).
It is a super-2 number, since 2×20190000002 = 8152722000000000000, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (12).
It is a self number, because there is not a number n which added to its sum of digits gives 2019000000.
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 27 ways as a sum of consecutive naturals, for example, 2999664 + ... + 3000336.
Almost surely, 22019000000 is an apocalyptic number.
2019000000 is a gapful number since it is divisible by the number (20) 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 2019000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3343629076).
2019000000 is an abundant number, since it is smaller than the sum of its proper divisors (4668258152).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2019000000 is an frugal number, since it uses more digits than its factorization.
2019000000 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 718 (or 683 counting only the distinct ones).
The product of its (nonzero) digits is 18, while the sum is 12.
The square root of 2019000000 is about 44933.2838773219. The cubic root of 2019000000 is about 1263.8982319391.
Adding to 2019000000 its reverse (9102), we get a palindrome (2019009102).
The spelling of 2019000000 in words is "two billion, nineteen million", and thus it is an aban number and an uban number.
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.067 sec. • engine limits •