Base | Representation |
---|---|
bin | 100100011011110… |
… | …1000001011101100 |
3 | 10011012102120102120 |
4 | 1020313220023230 |
5 | 10000432321220 |
6 | 321151152540 |
7 | 42203302365 |
oct | 11067501354 |
9 | 3135376376 |
10 | 1222542060 |
11 | 578102a43 |
12 | 2a1515750 |
13 | 16638798c |
14 | b851ab6c |
15 | 724dea40 |
hex | 48de82ec |
1222542060 has 48 divisors (see below), whose sum is σ = 3425565696. Its totient is φ = 325778112.
The previous prime is 1222542031. The next prime is 1222542091. The reversal of 1222542060 is 602452221.
It is a happy number.
It is a self number, because there is not a number n which added to its sum of digits gives 1222542060.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 87519 + ... + 100521.
It is an arithmetic number, because the mean of its divisors is an integer number (71365952).
Almost surely, 21222542060 is an apocalyptic number.
1222542060 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
1222542060 is an abundant number, since it is smaller than the sum of its proper divisors (2203023636).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1222542060 is a wasteful number, since it uses less digits than its factorization.
1222542060 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 14582 (or 14580 counting only the distinct ones).
The product of its (nonzero) digits is 1920, while the sum is 24.
The square root of 1222542060 is about 34964.8689401233. The cubic root of 1222542060 is about 1069.2713646512.
Adding to 1222542060 its reverse (602452221), we get a palindrome (1824994281).
It can be divided in two parts, 12225 and 42060, that added together give a triangular number (54285 = T329).
The spelling of 1222542060 in words is "one billion, two hundred twenty-two million, five hundred forty-two thousand, sixty".
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