Base | Representation |
---|---|
bin | 111001010101… |
… | …0110111110100 |
3 | 2002120012121002 |
4 | 1302222313310 |
5 | 30143410040 |
6 | 2552142432 |
7 | 513335354 |
oct | 162526764 |
9 | 62505532 |
10 | 30060020 |
11 | 15a715a1 |
12 | a097a18 |
13 | 62c63c3 |
14 | 3dc6b64 |
15 | 298ba15 |
hex | 1caadf4 |
30060020 has 24 divisors (see below), whose sum is σ = 63709800. Its totient is φ = 11912832.
The previous prime is 30059999. The next prime is 30060047. The reversal of 30060020 is 2006003.
It is a happy number.
It can be written as a sum of positive squares in 4 ways, for example, as 13380964 + 16679056 = 3658^2 + 4084^2 .
It is a junction number, because it is equal to n+sod(n) for n = 30059983 and 30060010.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4715 + ... + 9074.
It is an arithmetic number, because the mean of its divisors is an integer number (2654575).
Almost surely, 230060020 is an apocalyptic number.
It is an amenable number.
30060020 is an abundant number, since it is smaller than the sum of its proper divisors (33649780).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30060020 is a wasteful number, since it uses less digits than its factorization.
30060020 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 13907 (or 13905 counting only the distinct ones).
The product of its (nonzero) digits is 36, while the sum is 11.
The square root of 30060020 is about 5482.7018886677. The cubic root of 30060020 is about 310.9303304408.
Adding to 30060020 its reverse (2006003), we get a palindrome (32066023).
The spelling of 30060020 in words is "thirty million, sixty thousand, twenty".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.068 sec. • engine limits •