Base | Representation |
---|---|
bin | 11100001001101110… |
… | …101010111000011000 |
3 | 2220000122022111221221 |
4 | 130021232222320120 |
5 | 443401332002110 |
6 | 21515254541424 |
7 | 2120035522462 |
oct | 341156527030 |
9 | 86018274857 |
10 | 30228000280 |
11 | 11901a11015 |
12 | 5a37367874 |
13 | 2b096a40ca |
14 | 166a839132 |
15 | bbdb647da |
hex | 709baae18 |
30228000280 has 32 divisors (see below), whose sum is σ = 68283991440. Its totient is φ = 12043024000.
The previous prime is 30228000241. The next prime is 30228000281. The reversal of 30228000280 is 8200082203.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30228000281) by changing a digit.
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 7 ways as a sum of consecutive naturals, for example, 1495339 + ... + 1515418.
Almost surely, 230228000280 is an apocalyptic number.
It is an amenable number.
30228000280 is an abundant number, since it is smaller than the sum of its proper divisors (38055991160).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30228000280 is a wasteful number, since it uses less digits than its factorization.
30228000280 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3011019 (or 3011015 counting only the distinct ones).
The product of its (nonzero) digits is 1536, while the sum is 25.
Adding to 30228000280 its reverse (8200082203), we get a palindrome (38428082483).
The spelling of 30228000280 in words is "thirty billion, two hundred twenty-eight million, two hundred eighty", and thus it is an aban number.
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.075 sec. • engine limits •