Base | Representation |
---|---|
bin | 111110101001101… |
… | …0101010011100111 |
3 | 12102111200211201021 |
4 | 1331103111103213 |
5 | 13301132020012 |
6 | 544333512011 |
7 | 103044401206 |
oct | 17523252347 |
9 | 5374624637 |
10 | 2102220007 |
11 | 989715008 |
12 | 4a8042607 |
13 | 2766b7484 |
14 | 15d2a723d |
15 | c4855007 |
hex | 7d4d54e7 |
2102220007 has 4 divisors (see below), whose sum is σ = 2106063736. Its totient is φ = 2098376280.
The previous prime is 2102219993. The next prime is 2102220023. The reversal of 2102220007 is 7000222012.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is not a de Polignac number, because 2102220007 - 27 = 2102219879 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2102220047) 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, 1921044 + ... + 1922137.
It is an arithmetic number, because the mean of its divisors is an integer number (526515934).
Almost surely, 22102220007 is an apocalyptic number.
2102220007 is a deficient number, since it is larger than the sum of its proper divisors (3843729).
2102220007 is an equidigital number, since it uses as much as digits as its factorization.
2102220007 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3843728.
The product of its (nonzero) digits is 112, while the sum is 16.
The square root of 2102220007 is about 45849.9728135143. The cubic root of 2102220007 is about 1281.0302591959.
Adding to 2102220007 its reverse (7000222012), we get a palindrome (9102442019).
The spelling of 2102220007 in words is "two billion, one hundred two million, two hundred twenty thousand, seven".
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