Base | Representation |
---|---|
bin | 10001101000111110000… |
… | …000100001110001111110 |
3 | 11021212221202212110221102 |
4 | 101220332000201301332 |
5 | 124330112100300410 |
6 | 2324515305133102 |
7 | 153402653236424 |
oct | 21507600416176 |
9 | 4255852773842 |
10 | 1212221103230 |
11 | 428111234905 |
12 | 176b2a48a192 |
13 | 8a4094b5137 |
14 | 4295965d114 |
15 | 217eca832a5 |
hex | 11a3e021c7e |
1212221103230 has 8 divisors (see below), whose sum is σ = 2181997985832. Its totient is φ = 484888441288.
The previous prime is 1212221103193. The next prime is 1212221103251. The reversal of 1212221103230 is 323011222121.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60611055152 + ... + 60611055171.
It is an arithmetic number, because the mean of its divisors is an integer number (272749748229).
Almost surely, 21212221103230 is an apocalyptic number.
1212221103230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
1212221103230 is a deficient number, since it is larger than the sum of its proper divisors (969776882602).
1212221103230 is a wasteful number, since it uses less digits than its factorization.
1212221103230 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 121222110330.
The product of its (nonzero) digits is 288, while the sum is 20.
Adding to 1212221103230 its reverse (323011222121), we get a palindrome (1535232325351).
The spelling of 1212221103230 in words is "one trillion, two hundred twelve billion, two hundred twenty-one million, one hundred three thousand, two hundred thirty".
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