[go: up one dir, main page]

Search a number
-
+
2161083 = 3720361
BaseRepresentation
bin1000001111100110111011
311001210110010
420033212323
51023123313
6114153003
724240351
oct10174673
94053403
102161083
111246721
12882763
135a8862
144037d1
152ca4c3
hex20f9bb

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".

Divisors: 1 3 720361 2161083