Base | Representation |
---|---|
bin | 1000011100110001011101 |
3 | 11011112102020 |
4 | 20130301131 |
5 | 1031340010 |
6 | 115250353 |
7 | 24553512 |
oct | 10346135 |
9 | 4145366 |
10 | 2215005 |
11 | 1283191 |
12 | 8a99b9 |
13 | 5c7270 |
14 | 419309 |
15 | 2db470 |
hex | 21cc5d |
2215005 has 32 divisors (see below), whose sum is σ = 3932544. Its totient is φ = 1057536.
The previous prime is 2214997. The next prime is 2215009. The reversal of 2215005 is 5005122.
2215005 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is not a de Polignac number, because 2215005 - 23 = 2214997 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (15).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2215009) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7062 + ... + 7368.
It is an arithmetic number, because the mean of its divisors is an integer number (122892).
22215005 is an apocalyptic number.
It is an amenable number.
2215005 is a deficient number, since it is larger than the sum of its proper divisors (1717539).
2215005 is a wasteful number, since it uses less digits than its factorization.
2215005 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 365.
The product of its (nonzero) digits is 100, while the sum is 15.
The square root of 2215005 is about 1488.2892863956. The cubic root of 2215005 is about 130.3541624746.
The spelling of 2215005 in words is "two million, two hundred fifteen thousand, five".
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