Base | Representation |
---|---|
bin | 10111000111101010… |
… | …10100101111100101 |
3 | 1012001001000021011112 |
4 | 23203311110233211 |
5 | 200410024404341 |
6 | 5411355314405 |
7 | 616406105510 |
oct | 134365245745 |
9 | 35031007145 |
10 | 12412341221 |
11 | 529a496745 |
12 | 24a4a4ba05 |
13 | 122a707507 |
14 | 85a6b5d77 |
15 | 4c9a70aeb |
hex | 2e3d54be5 |
12412341221 has 8 divisors (see below), whose sum is σ = 14186304000. Its totient is φ = 10638571248.
The previous prime is 12412341211. The next prime is 12412341239. The reversal of 12412341221 is 12214321421.
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 12412341221 - 218 = 12412079077 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 (12412341211) 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, 137420 + ... + 209066.
It is an arithmetic number, because the mean of its divisors is an integer number (1773288000).
Almost surely, 212412341221 is an apocalyptic number.
It is an amenable number.
12412341221 is a deficient number, since it is larger than the sum of its proper divisors (1773962779).
12412341221 is an equidigital number, since it uses as much as digits as its factorization.
12412341221 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 96403.
The product of its digits is 768, while the sum is 23.
Adding to 12412341221 its reverse (12214321421), we get a palindrome (24626662642).
The spelling of 12412341221 in words is "twelve billion, four hundred twelve million, three hundred forty-one thousand, two hundred twenty-one".
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