Base | Representation |
---|---|
bin | 111110101001011… |
… | …1111011000011001 |
3 | 12102111112021112010 |
4 | 1331102333120121 |
5 | 13301121131301 |
6 | 544331540133 |
7 | 103043545323 |
oct | 17522773031 |
9 | 5374467463 |
10 | 2102130201 |
11 | 989663596 |
12 | 4a7bba649 |
13 | 276685632 |
14 | 15d282613 |
15 | c48385d6 |
hex | 7d4bf619 |
2102130201 has 4 divisors (see below), whose sum is σ = 2802840272. Its totient is φ = 1401420132.
The previous prime is 2102130161. The next prime is 2102130209. The reversal of 2102130201 is 1020312012.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.
It is not a de Polignac number, because 2102130201 - 214 = 2102113817 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (2102130209) by changing a digit.
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 3 ways as a sum of consecutive naturals, for example, 350355031 + ... + 350355036.
It is an arithmetic number, because the mean of its divisors is an integer number (700710068).
Almost surely, 22102130201 is an apocalyptic number.
It is an amenable number.
2102130201 is a deficient number, since it is larger than the sum of its proper divisors (700710071).
2102130201 is an equidigital number, since it uses as much as digits as its factorization.
2102130201 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 700710070.
The product of its (nonzero) digits is 24, while the sum is 12.
The square root of 2102130201 is about 45848.9934567816. The cubic root of 2102130201 is about 1281.0120172356.
Adding to 2102130201 its reverse (1020312012), we get a palindrome (3122442213).
The spelling of 2102130201 in words is "two billion, one hundred two million, one hundred thirty thousand, two hundred one".
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