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2144111 = 4614651
BaseRepresentation
bin1000001011011101101111
311000221011112
420023131233
51022102421
6113542235
724140024
oct10133557
94027145
102144111
1112349a2
1287497b
135a0c08
143db54b
152c545b
hex20b76f

2144111 has 4 divisors (see below), whose sum is σ = 2149224. Its totient is φ = 2139000.

The previous prime is 2144081. The next prime is 2144117. The reversal of 2144111 is 1114412.

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 2144111 - 26 = 2144047 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2144117) 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, 1865 + ... + 2786.

It is an arithmetic number, because the mean of its divisors is an integer number (537306).

22144111 is an apocalyptic number.

2144111 is a deficient number, since it is larger than the sum of its proper divisors (5113).

2144111 is an equidigital number, since it uses as much as digits as its factorization.

2144111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5112.

The product of its digits is 32, while the sum is 14.

The square root of 2144111 is about 1464.2783205388. The cubic root of 2144111 is about 128.9483397897.

Adding to 2144111 its reverse (1114412), we get a palindrome (3258523).

It can be divided in two parts, 214411 and 1, that added together give a palindrome (214412).

The spelling of 2144111 in words is "two million, one hundred forty-four thousand, one hundred eleven".

Divisors: 1 461 4651 2144111