Base | Representation |
---|---|
bin | 100100010110111… |
… | …1110000011101110 |
3 | 10011000122221101210 |
4 | 1020231332003232 |
5 | 4444310311342 |
6 | 321021015250 |
7 | 42142626054 |
oct | 11055760356 |
9 | 3130587353 |
10 | 1220010222 |
11 | 576733812 |
12 | 2a06b4526 |
13 | 1659ac452 |
14 | b805c1d4 |
15 | 7218e79c |
hex | 48b7e0ee |
1220010222 has 16 divisors (see below), whose sum is σ = 2524159440. Its totient is φ = 392646912.
The previous prime is 1220010221. The next prime is 1220010247. The reversal of 1220010222 is 2220100221.
It is a junction number, because it is equal to n+sod(n) for n = 1220010198 and 1220010207.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1220010221) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3505603 + ... + 3505950.
It is an arithmetic number, because the mean of its divisors is an integer number (157759965).
Almost surely, 21220010222 is an apocalyptic number.
1220010222 is an abundant number, since it is smaller than the sum of its proper divisors (1304149218).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1220010222 is a wasteful number, since it uses less digits than its factorization.
1220010222 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 7011587.
The product of its (nonzero) digits is 32, while the sum is 12.
The square root of 1220010222 is about 34928.6447203438. The cubic root of 1220010222 is about 1068.5327144331.
Adding to 1220010222 its reverse (2220100221), we get a palindrome (3440110443).
It can be divided in two parts, 12200 and 10222, that added together give a palindrome (22422).
The spelling of 1220010222 in words is "one billion, two hundred twenty million, ten thousand, two hundred twenty-two".
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