Base | Representation |
---|---|
bin | 111111101100100101011 |
3 | 10221001010010 |
4 | 13331210223 |
5 | 1013242321 |
6 | 112423003 |
7 | 23512110 |
oct | 7754453 |
9 | 3831103 |
10 | 2087211 |
11 | 11a6175 |
12 | 847a63 |
13 | 581049 |
14 | 3c4907 |
15 | 2b3676 |
hex | 1fd92b |
2087211 has 8 divisors (see below), whose sum is σ = 3180544. Its totient is φ = 1192680.
The previous prime is 2087203. The next prime is 2087213. The reversal of 2087211 is 1127802.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 2087211 - 23 = 2087203 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 99391 = 2087211 / (2 + 0 + 8 + 7 + 2 + 1 + 1).
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (2087213) 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, 49675 + ... + 49716.
It is an arithmetic number, because the mean of its divisors is an integer number (397568).
22087211 is an apocalyptic number.
2087211 is a gapful number since it is divisible by the number (21) formed by its first and last digit.
2087211 is a deficient number, since it is larger than the sum of its proper divisors (1093333).
2087211 is an equidigital number, since it uses as much as digits as its factorization.
2087211 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 99401.
The product of its (nonzero) digits is 224, while the sum is 21.
The square root of 2087211 is about 1444.7183116442. The cubic root of 2087211 is about 127.7974294217.
The spelling of 2087211 in words is "two million, eighty-seven thousand, two hundred eleven".
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