Search a number
-
+
2144065 = 57115569
BaseRepresentation
bin1000001011011101000001
311000221002211
420023131001
51022102230
6113542121
724136630
oct10133501
94027084
102144065
111234960
12874941
135a0ba1
143db517
152c542a
hex20b741

2144065 has 16 divisors (see below), whose sum is σ = 3208320. Its totient is φ = 1336320.

The previous prime is 2144063. The next prime is 2144081. The reversal of 2144065 is 5604412.

It is not a de Polignac number, because 2144065 - 21 = 2144063 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2144063) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2400 + ... + 3169.

It is an arithmetic number, because the mean of its divisors is an integer number (200520).

22144065 is an apocalyptic number.

It is an amenable number.

2144065 is a deficient number, since it is larger than the sum of its proper divisors (1064255).

2144065 is a wasteful number, since it uses less digits than its factorization.

2144065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5592.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 2144065 is about 1464.2626130582. The cubic root of 2144065 is about 128.9474176257.

Adding to 2144065 its reverse (5604412), we get a palindrome (7748477).

The spelling of 2144065 in words is "two million, one hundred forty-four thousand, sixty-five".

Divisors: 1 5 7 11 35 55 77 385 5569 27845 38983 61259 194915 306295 428813 2144065