Base | Representation |
---|---|
bin | 111110101001101… |
… | …0101110101111001 |
3 | 12102111200221201112 |
4 | 1331103111311321 |
5 | 13301132102301 |
6 | 544333530105 |
7 | 103044410462 |
oct | 17523256571 |
9 | 5374627645 |
10 | 2102222201 |
11 | 989716722 |
12 | 4a8043935 |
13 | 2766b8481 |
14 | 15d2a7d69 |
15 | c48559bb |
hex | 7d4d5d79 |
2102222201 has 8 divisors (see below), whose sum is σ = 2111494560. Its totient is φ = 2092963392.
The previous prime is 2102222131. The next prime is 2102222231. The reversal of 2102222201 is 1022222012.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-2102222201 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (2102222231) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 417185 + ... + 422193.
It is an arithmetic number, because the mean of its divisors is an integer number (263936820).
Almost surely, 22102222201 is an apocalyptic number.
It is an amenable number.
2102222201 is a deficient number, since it is larger than the sum of its proper divisors (9272359).
2102222201 is a wasteful number, since it uses less digits than its factorization.
2102222201 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 6775.
The product of its (nonzero) digits is 64, while the sum is 14.
The square root of 2102222201 is about 45849.9967393674. The cubic root of 2102222201 is about 1281.0307048485.
Adding to 2102222201 its reverse (1022222012), we get a palindrome (3124444213).
It can be divided in two parts, 2 and 102222201, that multiplied together give a palindrome (204444402).
The spelling of 2102222201 in words is "two billion, one hundred two million, two hundred twenty-two thousand, two hundred one".
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