Base | Representation |
---|---|
bin | 111111100010011001011 |
3 | 10220202221221 |
4 | 13330103023 |
5 | 1013110440 |
6 | 112342511 |
7 | 23460646 |
oct | 7742313 |
9 | 3822857 |
10 | 2081995 |
11 | 11a2263 |
12 | 844a37 |
13 | 57b866 |
14 | 3c2a5d |
15 | 2b1d4a |
hex | 1fc4cb |
2081995 has 4 divisors (see below), whose sum is σ = 2498400. Its totient is φ = 1665592.
The previous prime is 2081969. The next prime is 2082019. The reversal of 2081995 is 5991802.
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 2081995 - 29 = 2081483 is a prime.
It is a self number, because there is not a number n which added to its sum of digits gives 2081995.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 208195 + ... + 208204.
It is an arithmetic number, because the mean of its divisors is an integer number (624600).
22081995 is an apocalyptic number.
2081995 is a deficient number, since it is larger than the sum of its proper divisors (416405).
2081995 is an equidigital number, since it uses as much as digits as its factorization.
2081995 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 416404.
The product of its (nonzero) digits is 6480, while the sum is 34.
The square root of 2081995 is about 1442.9119862279. The cubic root of 2081995 is about 127.6908841417.
The spelling of 2081995 in words is "two million, eighty-one thousand, nine hundred ninety-five".
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