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2144020205 = 5439972187
BaseRepresentation
bin111111111001011…
…0010011011101101
312112102100111210202
41333302302123231
513342332121310
6552425443245
7104062604525
oct17762623355
95472314722
102144020205
11a00275128
124ba040525
13282261512
14164a68685
15c83603a5
hex7fcb26ed

2144020205 has 8 divisors (see below), whose sum is σ = 2632657632. Its totient is φ = 1675327248.

The previous prime is 2144020181. The next prime is 2144020213. The reversal of 2144020205 is 5020204412.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2144020205 - 216 = 2143954669 is a prime.

It is a super-3 number, since 3×21440202053 (a number of 29 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4985879 + ... + 4986308.

It is an arithmetic number, because the mean of its divisors is an integer number (329082204).

Almost surely, 22144020205 is an apocalyptic number.

It is an amenable number.

2144020205 is a deficient number, since it is larger than the sum of its proper divisors (488637427).

2144020205 is an equidigital number, since it uses as much as digits as its factorization.

2144020205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9972235.

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 2144020205 is about 46303.5657914161. The cubic root of 2144020205 is about 1289.4651960567.

Adding to 2144020205 its reverse (5020204412), we get a palindrome (7164224617).

The spelling of 2144020205 in words is "two billion, one hundred forty-four million, twenty thousand, two hundred five".

Divisors: 1 5 43 215 9972187 49860935 428804041 2144020205