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2144304131 = 3169171101
BaseRepresentation
bin111111111001111…
…0111110000000011
312112102212221021112
41333303313300003
513342420213011
6552435513535
7104065166354
oct17763676003
95472787245
102144304131
11a00449482
124ba1588ab
13282330818
14164addd2b
15c83b958b
hex7fcf7c03

2144304131 has 4 divisors (see below), whose sum is σ = 2213475264. Its totient is φ = 2075133000.

The previous prime is 2144304121. The next prime is 2144304133. The reversal of 2144304131 is 1314034412.

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 2144304131 - 26 = 2144304067 is a prime.

It is a super-2 number, since 2×21443041312 = 9196080412447330322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2144304097 and 2144304106.

It is not an unprimeable number, because it can be changed into a prime (2144304133) 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, 34585520 + ... + 34585581.

It is an arithmetic number, because the mean of its divisors is an integer number (553368816).

Almost surely, 22144304131 is an apocalyptic number.

2144304131 is a deficient number, since it is larger than the sum of its proper divisors (69171133).

2144304131 is an equidigital number, since it uses as much as digits as its factorization.

2144304131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69171132.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 2144304131 is about 46306.6316093062. The cubic root of 2144304131 is about 1289.5221135140.

Adding to 2144304131 its reverse (1314034412), we get a palindrome (3458338543).

The spelling of 2144304131 in words is "two billion, one hundred forty-four million, three hundred four thousand, one hundred thirty-one".

Divisors: 1 31 69171101 2144304131