Base | Representation |
---|---|
bin | 11011111110000000… |
… | …000000110111101000 |
3 | 2212111221001001102211 |
4 | 123332000000313220 |
5 | 443000443021300 |
6 | 21443545134504 |
7 | 2112126105562 |
oct | 337600006750 |
9 | 85457031384 |
10 | 30031220200 |
11 | 11810928253 |
12 | 59a148a434 |
13 | 2aa79a65a7 |
14 | 164c654332 |
15 | bab7444ba |
hex | 6fe000de8 |
30031220200 has 48 divisors (see below), whose sum is σ = 71709701580. Its totient is φ = 11687823360.
The previous prime is 30031220179. The next prime is 30031220231. The reversal of 30031220200 is 202213003.
It is a happy number.
It can be written as a sum of positive squares in 6 ways, for example, as 21168504036 + 8862716164 = 145494^2 + 94142^2 .
It is an unprimeable number.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2021737 + ... + 2036536.
Almost surely, 230031220200 is an apocalyptic number.
It is an amenable number.
30031220200 is an abundant number, since it is smaller than the sum of its proper divisors (41678481380).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30031220200 is a wasteful number, since it uses less digits than its factorization.
30031220200 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4058326 (or 4058317 counting only the distinct ones).
The product of its (nonzero) digits is 72, while the sum is 13.
Adding to 30031220200 its reverse (202213003), we get a palindrome (30233433203).
The spelling of 30031220200 in words is "thirty billion, thirty-one million, two hundred twenty thousand, two hundred".
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