Base | Representation |
---|---|
bin | 1000010001110001… |
… | …0010111010100101 |
3 | 12201212002210201110 |
4 | 2010130102322211 |
5 | 14022313310041 |
6 | 1004253215233 |
7 | 106030526220 |
oct | 20434227245 |
9 | 5655083643 |
10 | 2222010021 |
11 | a402a3020 |
12 | 520191519 |
13 | 29546993a |
14 | 17116a5b7 |
15 | d0118516 |
hex | 84712ea5 |
2222010021 has 16 divisors (see below), whose sum is σ = 3693731328. Its totient is φ = 1154290800.
The previous prime is 2222010019. The next prime is 2222010053. The reversal of 2222010021 is 1200102222.
It is not a de Polignac number, because 2222010021 - 21 = 2222010019 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 2222009979 and 2222010006.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2222010221) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4809315 + ... + 4809776.
It is an arithmetic number, because the mean of its divisors is an integer number (230858208).
Almost surely, 22222010021 is an apocalyptic number.
2222010021 is a gapful number since it is divisible by the number (21) formed by its first and last digit.
It is an amenable number.
2222010021 is a deficient number, since it is larger than the sum of its proper divisors (1471721307).
2222010021 is a wasteful number, since it uses less digits than its factorization.
2222010021 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 9619112.
The product of its (nonzero) digits is 32, while the sum is 12.
The square root of 2222010021 is about 47138.2012915215. The cubic root of 2222010021 is about 1304.9143420825.
Adding to 2222010021 its reverse (1200102222), we get a palindrome (3422112243).
The spelling of 2222010021 in words is "two billion, two hundred twenty-two million, ten thousand, twenty-one".
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