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2144530213 = 7615022319
BaseRepresentation
bin111111111010010…
…1110111100100101
312112110022102101221
41333310232330211
513342444431323
6552444420341
7104100130450
oct17764567445
95473272357
102144530213
11a00593321
124ba2476b1
132823ac6b7
14164b5c497
15c841155d
hex7fd2ef25

2144530213 has 8 divisors (see below), whose sum is σ = 2491070720. Its totient is φ = 1808034480.

The previous prime is 2144530187. The next prime is 2144530231. The reversal of 2144530213 is 3120354412.

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

It is not a de Polignac number, because 2144530213 - 25 = 2144530181 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 (2144530243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2510733 + ... + 2511586.

It is an arithmetic number, because the mean of its divisors is an integer number (311383840).

Almost surely, 22144530213 is an apocalyptic number.

It is an amenable number.

2144530213 is a deficient number, since it is larger than the sum of its proper divisors (346540507).

2144530213 is an equidigital number, since it uses as much as digits as its factorization.

2144530213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5022387.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 2144530213 is about 46309.0726855980. The cubic root of 2144530213 is about 1289.5674316336.

Adding to 2144530213 its reverse (3120354412), we get a palindrome (5264884625).

The spelling of 2144530213 in words is "two billion, one hundred forty-four million, five hundred thirty thousand, two hundred thirteen".

Divisors: 1 7 61 427 5022319 35156233 306361459 2144530213