Base | Representation |
---|---|
bin | 1000001111100110111011 |
3 | 11001210110010 |
4 | 20033212323 |
5 | 1023123313 |
6 | 114153003 |
7 | 24240351 |
oct | 10174673 |
9 | 4053403 |
10 | 2161083 |
11 | 1246721 |
12 | 882763 |
13 | 5a8862 |
14 | 4037d1 |
15 | 2ca4c3 |
hex | 20f9bb |
2161083 has 4 divisors (see below), whose sum is σ = 2881448. Its totient is φ = 1440720.
The previous prime is 2161031. The next prime is 2161087. The reversal of 2161083 is 3801612.
It is a semiprime because it is the product of two primes.
It is not a de Polignac number, because 2161083 - 216 = 2095547 is a prime.
It is a D-number.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (2161087) by changing a digit.
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, 360178 + ... + 360183.
It is an arithmetic number, because the mean of its divisors is an integer number (720362).
22161083 is an apocalyptic number.
2161083 is a deficient number, since it is larger than the sum of its proper divisors (720365).
2161083 is an equidigital number, since it uses as much as digits as its factorization.
2161083 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 720364.
The product of its (nonzero) digits is 288, while the sum is 21.
The square root of 2161083 is about 1470.0622435802. The cubic root of 2161083 is about 129.2876819845.
Adding to 2161083 its reverse (3801612), we get a palindrome (5962695).
The spelling of 2161083 in words is "two million, one hundred sixty-one thousand, eighty-three".
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