Base | Representation |
---|---|
bin | 111110101111101… |
… | …0000000011001001 |
3 | 12102201120120022011 |
4 | 1331133100003021 |
5 | 13302432003301 |
6 | 544524455521 |
7 | 103113062512 |
oct | 17537200311 |
9 | 5381516264 |
10 | 2105344201 |
11 | 990459294 |
12 | 4a90aa5a1 |
13 | 27723c4cc |
14 | 15d87ba09 |
15 | c4c70a51 |
hex | 7d7d00c9 |
2105344201 has 4 divisors (see below), whose sum is σ = 2107734804. Its totient is φ = 2102953600.
The previous prime is 2105344183. The next prime is 2105344207. The reversal of 2105344201 is 1024435012.
It is a semiprime because it is the product of two primes.
It can be written as a sum of positive squares in 2 ways, for example, as 661724176 + 1443620025 = 25724^2 + 37995^2 .
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-2105344201 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (2105344207) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1193980 + ... + 1195741.
It is an arithmetic number, because the mean of its divisors is an integer number (526933701).
Almost surely, 22105344201 is an apocalyptic number.
It is an amenable number.
2105344201 is a deficient number, since it is larger than the sum of its proper divisors (2390603).
2105344201 is an equidigital number, since it uses as much as digits as its factorization.
2105344201 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2390602.
The product of its (nonzero) digits is 960, while the sum is 22.
The square root of 2105344201 is about 45884.0299123780. The cubic root of 2105344201 is about 1281.6645420125.
Adding to 2105344201 its reverse (1024435012), we get a palindrome (3129779213).
The spelling of 2105344201 in words is "two billion, one hundred five million, three hundred forty-four thousand, two hundred one".
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