Base | Representation |
---|---|
bin | 1000010001100001… |
… | …1101000110000111 |
3 | 12201210012122112200 |
4 | 2010120131012013 |
5 | 14022034100033 |
6 | 1004215445543 |
7 | 106016133552 |
oct | 20430350607 |
9 | 5653178480 |
10 | 2221003143 |
11 | a3a775597 |
12 | 51b9868b3 |
13 | 2951a6558 |
14 | 170d87699 |
15 | ceeba013 |
hex | 8461d187 |
2221003143 has 12 divisors (see below), whose sum is σ = 3210987000. Its totient is φ = 1479343536.
The previous prime is 2221003133. The next prime is 2221003151. The reversal of 2221003143 is 3413001222.
It is not a de Polignac number, because 2221003143 - 221 = 2218905991 is a prime.
It is a super-2 number, since 2×22210031432 = 9865709922431756898, which contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2221003133) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 99768 + ... + 119981.
It is an arithmetic number, because the mean of its divisors is an integer number (267582250).
Almost surely, 22221003143 is an apocalyptic number.
2221003143 is a deficient number, since it is larger than the sum of its proper divisors (989983857).
2221003143 is a wasteful number, since it uses less digits than its factorization.
2221003143 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 220878 (or 220875 counting only the distinct ones).
The product of its (nonzero) digits is 288, while the sum is 18.
The square root of 2221003143 is about 47127.5200175015. The cubic root of 2221003143 is about 1304.7172100506.
Adding to 2221003143 its reverse (3413001222), we get a palindrome (5634004365).
The spelling of 2221003143 in words is "two billion, two hundred twenty-one million, three thousand, one hundred forty-three".
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