Search a number
-
+
2144314345 = 5428862869
BaseRepresentation
bin111111111001111…
…1010001111101001
312112102220110021211
41333303322033221
513342421024340
6552440033121
7104065241215
oct17763721751
95472813254
102144314345
11a00456118
124ba1627a1
13282335374
14164b03945
15c83bc5ea
hex7fcfa3e9

2144314345 has 4 divisors (see below), whose sum is σ = 2573177220. Its totient is φ = 1715451472.

The previous prime is 2144314343. The next prime is 2144314441. The reversal of 2144314345 is 5434134412.

2144314345 is digitally balanced in base 6, 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.

It can be written as a sum of positive squares in 2 ways, for example, as 1639683049 + 504631296 = 40493^2 + 22464^2 .

It is a cyclic number.

It is not a de Polignac number, because 2144314345 - 21 = 2144314343 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2144314343) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 214431430 + ... + 214431439.

It is an arithmetic number, because the mean of its divisors is an integer number (643294305).

Almost surely, 22144314345 is an apocalyptic number.

It is an amenable number.

2144314345 is a deficient number, since it is larger than the sum of its proper divisors (428862875).

2144314345 is an equidigital number, since it uses as much as digits as its factorization.

2144314345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 428862874.

The product of its digits is 23040, while the sum is 31.

The square root of 2144314345 is about 46306.7418957542. The cubic root of 2144314345 is about 1289.5241609782.

Adding to 2144314345 its reverse (5434134412), we get a palindrome (7578448757).

The spelling of 2144314345 in words is "two billion, one hundred forty-four million, three hundred fourteen thousand, three hundred forty-five".

Divisors: 1 5 428862869 2144314345