Base | Representation |
---|---|
bin | 10001101000111101010… |
… | …110101000100100010110 |
3 | 11021212221000012112010111 |
4 | 101220331112220210112 |
5 | 124330101242332412 |
6 | 2324514233513234 |
7 | 153402461006260 |
oct | 21507526504426 |
9 | 4255830175114 |
10 | 1212210120982 |
11 | 428106013773 |
12 | 176b2687281a |
13 | 8a40713b473 |
14 | 42958000b30 |
15 | 217ebb142a7 |
hex | 11a3d5a8916 |
1212210120982 has 32 divisors (see below), whose sum is σ = 2101563696960. Its totient is φ = 513647101440.
The previous prime is 1212210120973. The next prime is 1212210120983. The reversal of 1212210120982 is 2890210122121.
It is a super-2 number, since 2×12122101209822 (a number of 25 digits) contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1212210120983) by changing a digit.
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 15 ways as a sum of consecutive naturals, for example, 29361298 + ... + 29402554.
It is an arithmetic number, because the mean of its divisors is an integer number (65673865530).
Almost surely, 21212210120982 is an apocalyptic number.
1212210120982 is a deficient number, since it is larger than the sum of its proper divisors (889353575978).
1212210120982 is a wasteful number, since it uses less digits than its factorization.
1212210120982 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 64936.
The product of its (nonzero) digits is 2304, while the sum is 31.
The spelling of 1212210120982 in words is "one trillion, two hundred twelve billion, two hundred ten million, one hundred twenty thousand, nine hundred eighty-two".
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