Base | Representation |
---|---|
bin | 100100010111000… |
… | …0011101011000111 |
3 | 10011000201002221200 |
4 | 1020232003223013 |
5 | 4444312030343 |
6 | 321021313543 |
7 | 42143053113 |
oct | 11056035307 |
9 | 3130632850 |
10 | 1220033223 |
11 | 57674a022 |
12 | 2a07058b3 |
13 | 1659b9a66 |
14 | b8066743 |
15 | 721964d3 |
hex | 48b83ac7 |
1220033223 has 12 divisors (see below), whose sum is σ = 1770175680. Its totient is φ = 809706816.
The previous prime is 1220033189. The next prime is 1220033233. The reversal of 1220033223 is 3223300221.
It is a happy number.
It is not a de Polignac number, because 1220033223 - 212 = 1220029127 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 1220033196 and 1220033205.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1220033233) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 301938 + ... + 305951.
It is an arithmetic number, because the mean of its divisors is an integer number (147514640).
Almost surely, 21220033223 is an apocalyptic number.
1220033223 is a deficient number, since it is larger than the sum of its proper divisors (550142457).
1220033223 is a wasteful number, since it uses less digits than its factorization.
1220033223 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 608118 (or 608115 counting only the distinct ones).
The product of its (nonzero) digits is 432, while the sum is 18.
The square root of 1220033223 is about 34928.9739757697. The cubic root of 1220033223 is about 1068.5394294497.
Adding to 1220033223 its reverse (3223300221), we get a palindrome (4443333444).
The spelling of 1220033223 in words is "one billion, two hundred twenty million, thirty-three thousand, two hundred twenty-three".
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