Base | Representation |
---|---|
bin | 111000011100010110… |
… | …0001101111111001101 |
3 | 102120212100101010211011 |
4 | 1300320230031333031 |
5 | 3441214302400023 |
6 | 131403323125221 |
7 | 11520462462220 |
oct | 1607054157715 |
9 | 376770333734 |
10 | 121210200013 |
11 | 4744aaa8321 |
12 | 1b5a9073811 |
13 | b578b40456 |
14 | 5c1bd6d5b7 |
15 | 324635850d |
hex | 1c38b0dfcd |
121210200013 has 8 divisors (see below), whose sum is σ = 138528299520. Its totient is φ = 103892689680.
The previous prime is 121210199993. The next prime is 121210200019. The reversal of 121210200013 is 310002012121.
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 121210200013 - 213 = 121210191821 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 121210199966 and 121210200002.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (121210200019) 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, 461103 + ... + 674563.
It is an arithmetic number, because the mean of its divisors is an integer number (17316037440).
Almost surely, 2121210200013 is an apocalyptic number.
It is an amenable number.
121210200013 is a deficient number, since it is larger than the sum of its proper divisors (17318099507).
121210200013 is an equidigital number, since it uses as much as digits as its factorization.
121210200013 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 294587.
The product of its (nonzero) digits is 24, while the sum is 13.
Adding to 121210200013 its reverse (310002012121), we get a palindrome (431212212134).
The spelling of 121210200013 in words is "one hundred twenty-one billion, two hundred ten million, two hundred thousand, thirteen".
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