Base | Representation |
---|---|
bin | 10001110010000110101… |
… | …111001101010010100101 |
3 | 11022211021110100202201222 |
4 | 101302012233031102211 |
5 | 130010204443443323 |
6 | 2333220550230125 |
7 | 154201034050406 |
oct | 21620657152245 |
9 | 4284243322658 |
10 | 1222031234213 |
11 | 431295856479 |
12 | 178a07955345 |
13 | 8b310a5467a |
14 | 4320a4b99ad |
15 | 21bc3e389c8 |
hex | 11c86bcd4a5 |
1222031234213 has 8 divisors (see below), whose sum is σ = 1233003080088. Its totient is φ = 1211062150144.
The previous prime is 1222031234191. The next prime is 1222031234269. The reversal of 1222031234213 is 3124321302221.
It can be written as a sum of positive squares in 4 ways, for example, as 26732904004 + 1195298330209 = 163502^2 + 1093297^2 .
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 1222031234213 - 214 = 1222031217829 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 (1222031234713) 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, 203645 + ... + 1576557.
It is an arithmetic number, because the mean of its divisors is an integer number (154125385011).
Almost surely, 21222031234213 is an apocalyptic number.
It is an amenable number.
1222031234213 is a deficient number, since it is larger than the sum of its proper divisors (10971845875).
1222031234213 is a wasteful number, since it uses less digits than its factorization.
1222031234213 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1380903.
The product of its (nonzero) digits is 3456, while the sum is 26.
Adding to 1222031234213 its reverse (3124321302221), we get a palindrome (4346352536434).
The spelling of 1222031234213 in words is "one trillion, two hundred twenty-two billion, thirty-one million, two hundred thirty-four thousand, two hundred thirteen".
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