Base | Representation |
---|---|
bin | 1101101001111111011101… |
… | …01001111010111110100101 |
3 | 10221022211222201102020000012 |
4 | 12310333232221322332211 |
5 | 12414003141301130341 |
6 | 143511351414300005 |
7 | 6216414243114611 |
oct | 664775651727645 |
9 | 127284881366005 |
10 | 30030120333221 |
11 | 9628780054228 |
12 | 3450056657605 |
13 | 139aa9c716b28 |
14 | 75b67379a341 |
15 | 3712442720eb |
hex | 1b4feea7afa5 |
30030120333221 has 8 divisors (see below), whose sum is σ = 30039449595480. Its totient is φ = 30020791547392.
The previous prime is 30030120333211. The next prime is 30030120333293. The reversal of 30030120333221 is 12233302103003.
It can be written as a sum of positive squares in 4 ways, for example, as 6056963988100 + 23973156345121 = 2461090^2 + 4896239^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 30030120333221 - 214 = 30030120316837 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30030120333211) 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, 158017385 + ... + 158207313.
It is an arithmetic number, because the mean of its divisors is an integer number (3754931199435).
Almost surely, 230030120333221 is an apocalyptic number.
It is an amenable number.
30030120333221 is a deficient number, since it is larger than the sum of its proper divisors (9329262259).
30030120333221 is a wasteful number, since it uses less digits than its factorization.
30030120333221 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 238215.
The product of its (nonzero) digits is 1944, while the sum is 23.
Adding to 30030120333221 its reverse (12233302103003), we get a palindrome (42263422436224).
The spelling of 30030120333221 in words is "thirty trillion, thirty billion, one hundred twenty million, three hundred thirty-three thousand, two hundred twenty-one".
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