Base | Representation |
---|---|
bin | 111111011111000… |
… | …1001110010001110 |
3 | 12111110101111112100 |
4 | 1332332021302032 |
5 | 13330314102342 |
6 | 551214015530 |
7 | 103534406262 |
oct | 17676116216 |
9 | 5443344470 |
10 | 2130222222 |
11 | 9a3500537 |
12 | 4b54a75a6 |
13 | 27c44002b |
14 | 162cb60a2 |
15 | c7036e4c |
hex | 7ef89c8e |
2130222222 has 24 divisors (see below), whose sum is σ = 4631917680. Its totient is φ = 707545440.
The previous prime is 2130222197. The next prime is 2130222287. The reversal of 2130222222 is 2222220312.
It is a Harshad number since it is a multiple of its sum of digits (18).
2130222222 is a modest number, since divided by 22222 gives 21302 as remainder.
It is a junction number, because it is equal to n+sod(n) for n = 2130222195 and 2130222204.
It is a congruent number.
It is an unprimeable number.
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 11 ways as a sum of consecutive naturals, for example, 205522 + ... + 215637.
It is an arithmetic number, because the mean of its divisors is an integer number (192996570).
Almost surely, 22130222222 is an apocalyptic number.
2130222222 is an abundant number, since it is smaller than the sum of its proper divisors (2501695458).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2130222222 is a wasteful number, since it uses less digits than its factorization.
2130222222 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 421448 (or 421445 counting only the distinct ones).
The product of its (nonzero) digits is 384, while the sum is 18.
The square root of 2130222222 is about 46154.3304793819. The cubic root of 2130222222 is about 1286.6930948274.
Adding to 2130222222 its reverse (2222220312), we get a palindrome (4352442534).
The spelling of 2130222222 in words is "two billion, one hundred thirty million, two hundred twenty-two thousand, two hundred twenty-two".
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