Base | Representation |
---|---|
bin | 10001011111101001111… |
… | …010111111010001010101 |
3 | 11020221010210211122220012 |
4 | 101133221322333101111 |
5 | 124144121412233141 |
6 | 2320143100050005 |
7 | 152600100023063 |
oct | 21375172772125 |
9 | 4227123748805 |
10 | 1202220430421 |
11 | 42394a10035a |
12 | 174bb9233905 |
13 | 894a462066a |
14 | 4228b3a3033 |
15 | 21414ae0ceb |
hex | 117e9ebf455 |
1202220430421 has 8 divisors (see below), whose sum is σ = 1205136498720. Its totient is φ = 1199307867408.
The previous prime is 1202220430409. The next prime is 1202220430427. The reversal of 1202220430421 is 1240340222021.
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 1202220430421 - 214 = 1202220414037 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 (1202220430427) 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, 188891 + ... + 1562088.
It is an arithmetic number, because the mean of its divisors is an integer number (150642062340).
Almost surely, 21202220430421 is an apocalyptic number.
It is an amenable number.
1202220430421 is a deficient number, since it is larger than the sum of its proper divisors (2916068299).
1202220430421 is an equidigital number, since it uses as much as digits as its factorization.
1202220430421 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1752643.
The product of its (nonzero) digits is 1536, while the sum is 23.
Adding to 1202220430421 its reverse (1240340222021), we get a palindrome (2442560652442).
The spelling of 1202220430421 in words is "one trillion, two hundred two billion, two hundred twenty million, four hundred thirty thousand, four hundred twenty-one".
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