Base | Representation |
---|---|
bin | 100100011010111… |
… | …1111011001110101 |
3 | 10011011121202201012 |
4 | 1020311333121311 |
5 | 10000330103020 |
6 | 321134042005 |
7 | 42166534220 |
oct | 11065773165 |
9 | 3134552635 |
10 | 1222112885 |
11 | 57793a554 |
12 | 2a1349305 |
13 | 166267526 |
14 | b84485b7 |
15 | 724577c5 |
hex | 48d7f675 |
1222112885 has 16 divisors (see below), whose sum is σ = 1678465152. Its totient is φ = 836808000.
The previous prime is 1222112873. The next prime is 1222112887. The reversal of 1222112885 is 5882112221.
It is not a de Polignac number, because 1222112885 - 26 = 1222112821 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1222112887) 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, 371 + ... + 49440.
It is an arithmetic number, because the mean of its divisors is an integer number (104904072).
Almost surely, 21222112885 is an apocalyptic number.
It is an amenable number.
1222112885 is a deficient number, since it is larger than the sum of its proper divisors (456352267).
1222112885 is an equidigital number, since it uses as much as digits as its factorization.
1222112885 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 50524.
The product of its digits is 5120, while the sum is 32.
The square root of 1222112885 is about 34958.7311697664. The cubic root of 1222112885 is about 1069.1462269666.
The spelling of 1222112885 in words is "one billion, two hundred twenty-two million, one hundred twelve thousand, eight hundred eighty-five".
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