Base | Representation |
---|---|
bin | 100100000011111… |
… | …0111000101111110 |
3 | 10010022212101200210 |
4 | 1020013313011332 |
5 | 4434231121342 |
6 | 320022533250 |
7 | 41662000515 |
oct | 11007670576 |
9 | 3108771623 |
10 | 1210020222 |
11 | 571030114 |
12 | 299297226 |
13 | 1638c22c8 |
14 | b69bb67c |
15 | 7136979c |
hex | 481f717e |
1210020222 has 16 divisors (see below), whose sum is σ = 2420462592. Its totient is φ = 403269720.
The previous prime is 1210020221. The next prime is 1210020233. The reversal of 1210020222 is 2220200121.
It is a junction number, because it is equal to n+sod(n) for n = 1210020198 and 1210020207.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1210020221) 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, 29283 + ... + 57249.
It is an arithmetic number, because the mean of its divisors is an integer number (151278912).
Almost surely, 21210020222 is an apocalyptic number.
1210020222 is an abundant number, since it is smaller than the sum of its proper divisors (1210442370).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1210020222 is a wasteful number, since it uses less digits than its factorization.
1210020222 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 35183.
The product of its (nonzero) digits is 32, while the sum is 12.
The square root of 1210020222 is about 34785.3449314507. The cubic root of 1210020222 is about 1065.6081729893.
Adding to 1210020222 its reverse (2220200121), we get a palindrome (3430220343).
The spelling of 1210020222 in words is "one billion, two hundred ten million, twenty thousand, two hundred twenty-two".
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