Base | Representation |
---|---|
bin | 111100011100000… |
… | …1111000110000100 |
3 | 12020100001110201110 |
4 | 1320320033012010 |
5 | 13123132222222 |
6 | 533123125020 |
7 | 101153532135 |
oct | 17070170604 |
9 | 5210043643 |
10 | 2028007812 |
11 | 950837316 |
12 | 487213770 |
13 | 26420262c |
14 | 1534a9c8c |
15 | bd09630c |
hex | 78e0f184 |
2028007812 has 24 divisors (see below), whose sum is σ = 4741080736. Its totient is φ = 674707968.
The previous prime is 2028007811. The next prime is 2028007831. The reversal of 2028007812 is 2187008202.
It is a happy number.
It is a super-2 number, since 2×20280078122 = 8225631371066054688, which contains 22 as substring.
It is a self number, because there is not a number n which added to its sum of digits gives 2028007812.
It is not an unprimeable number, because it can be changed into a prime (2028007811) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 155293 + ... + 167844.
Almost surely, 22028007812 is an apocalyptic number.
It is an amenable number.
2028007812 is an abundant number, since it is smaller than the sum of its proper divisors (2713072924).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2028007812 is a wasteful number, since it uses less digits than its factorization.
2028007812 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 323667 (or 323665 counting only the distinct ones).
The product of its (nonzero) digits is 3584, while the sum is 30.
The square root of 2028007812 is about 45033.4077324823. The cubic root of 2028007812 is about 1265.7750798987.
The spelling of 2028007812 in words is "two billion, twenty-eight million, seven thousand, eight hundred twelve".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.066 sec. • engine limits •