Search a number
-
+
2144071 = 10632017
BaseRepresentation
bin1000001011011101000111
311000221010001
420023131013
51022102241
6113542131
724136636
oct10133507
94027101
102144071
111234966
12874947
135a0ba7
143db51d
152c5431
hex20b747

2144071 has 4 divisors (see below), whose sum is σ = 2147152. Its totient is φ = 2140992.

The previous prime is 2144063. The next prime is 2144081. The reversal of 2144071 is 1704412.

2144071 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 2144071 - 23 = 2144063 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2144011) 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 3 ways as a sum of consecutive naturals, for example, 55 + ... + 2071.

It is an arithmetic number, because the mean of its divisors is an integer number (536788).

22144071 is an apocalyptic number.

2144071 is a deficient number, since it is larger than the sum of its proper divisors (3081).

2144071 is a wasteful number, since it uses less digits than its factorization.

2144071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3080.

The product of its (nonzero) digits is 224, while the sum is 19.

The square root of 2144071 is about 1464.2646618696. The cubic root of 2144071 is about 128.9475379087.

Adding to 2144071 its reverse (1704412), we get a palindrome (3848483).

The spelling of 2144071 in words is "two million, one hundred forty-four thousand, seventy-one".

Divisors: 1 1063 2017 2144071