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8744714221 = 4329748757
BaseRepresentation
bin10000010010011100…
…11011111111101101
3211120102201111202111
420021032123333231
5120402121323341
64003421324021
7426462562435
oct101116337755
924512644674
108744714221
113788188251
121840706611
13a94909a19
145cd5612c5
15362aa1681
hex20939bfed

8744714221 has 12 divisors (see below), whose sum is σ = 9045291612. Its totient is φ = 8453120256.

The previous prime is 8744714183. The next prime is 8744714239. The reversal of 8744714221 is 1224174478.

It can be written as a sum of positive squares in 2 ways, for example, as 2653692196 + 6091022025 = 51514^2 + 78045^2 .

It is not a de Polignac number, because 8744714221 - 27 = 8744714093 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 (8744714281) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 154975 + ... + 203731.

It is an arithmetic number, because the mean of its divisors is an integer number (753774301).

Almost surely, 28744714221 is an apocalyptic number.

It is an amenable number.

8744714221 is a deficient number, since it is larger than the sum of its proper divisors (300577391).

8744714221 is an equidigital number, since it uses as much as digits as its factorization.

8744714221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48940 (or 48897 counting only the distinct ones).

The product of its digits is 100352, while the sum is 40.

The square root of 8744714221 is about 93513.1767239248. The cubic root of 8744714221 is about 2060.2276291177.

Adding to 8744714221 its reverse (1224174478), we get a palindrome (9968888699).

The spelling of 8744714221 in words is "eight billion, seven hundred forty-four million, seven hundred fourteen thousand, two hundred twenty-one".

Divisors: 1 43 97 1849 4171 48757 179353 2096551 4729429 90151693 203365447 8744714221