Base | Representation |
---|---|
bin | 1000010001010101… |
… | …1110101010010100 |
3 | 12201201202000120002 |
4 | 2010111132222110 |
5 | 14021334114444 |
6 | 1004151030432 |
7 | 106006404500 |
oct | 20425365224 |
9 | 5651660502 |
10 | 2220223124 |
11 | a3a292549 |
12 | 51b66b418 |
13 | 294c924c2 |
14 | 170c23300 |
15 | cedb3d4e |
hex | 8455ea94 |
2220223124 has 18 divisors (see below), whose sum is σ = 4519740330. Its totient is φ = 951524112.
The previous prime is 2220223123. The next prime is 2220223133. The reversal of 2220223124 is 4213220222.
It can be written as a sum of positive squares in only one way, i.e., 1633614724 + 586608400 = 40418^2 + 24220^2 .
It is a junction number, because it is equal to n+sod(n) for n = 2220223096 and 2220223105.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2220223121) by changing a digit.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5663639 + ... + 5664030.
It is an arithmetic number, because the mean of its divisors is an integer number (251096685).
Almost surely, 22220223124 is an apocalyptic number.
It is an amenable number.
2220223124 is an abundant number, since it is smaller than the sum of its proper divisors (2299517206).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2220223124 is a wasteful number, since it uses less digits than its factorization.
2220223124 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 11327687 (or 11327678 counting only the distinct ones).
The product of its (nonzero) digits is 768, while the sum is 20.
The square root of 2220223124 is about 47119.2436696516. The cubic root of 2220223124 is about 1304.5644527437.
Adding to 2220223124 its reverse (4213220222), we get a palindrome (6433443346).
The spelling of 2220223124 in words is "two billion, two hundred twenty million, two hundred twenty-three thousand, one hundred twenty-four".
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