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144120143002221 = 3273832642902991
BaseRepresentation
bin100000110001001110010101…
…111011011011101001101101
3200220021202021120012010012100
4200301032111323123221231
5122342231023102032341
61230303514002325313
742233223332000541
oct4061162573335155
9626252246163170
10144120143002221
1141a1501157a691
12141b7548359839
136255618212199
142783648959a21
15119dd67c983b6
hex831395edba6d

144120143002221 has 24 divisors (see below), whose sum is σ = 213567704977536. Its totient is φ = 93622195517760.

The previous prime is 144120143002163. The next prime is 144120143002229. The reversal of 144120143002221 is 122200341021441.

144120143002221 is a `hidden beast` number, since 1 + 4 + 4 + 1 + 2 + 0 + 1 + 430 + 0 + 2 + 221 = 666.

It is not a de Polignac number, because 144120143002221 - 214 = 144120142985837 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144120143002229) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1321396965 + ... + 1321506026.

It is an arithmetic number, because the mean of its divisors is an integer number (8898654374064).

Almost surely, 2144120143002221 is an apocalyptic number.

It is an amenable number.

144120143002221 is a deficient number, since it is larger than the sum of its proper divisors (69447561975315).

144120143002221 is a wasteful number, since it uses less digits than its factorization.

144120143002221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2642903153 (or 2642903150 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

Adding to 144120143002221 its reverse (122200341021441), we get a palindrome (266320484023662).

The spelling of 144120143002221 in words is "one hundred forty-four trillion, one hundred twenty billion, one hundred forty-three million, two thousand, two hundred twenty-one".

Divisors: 1 3 9 73 83 219 249 657 747 6059 18177 54531 2642902991 7928708973 23786126919 192931918343 219360948253 578795755029 658082844759 1736387265087 1974248534277 16013349222469 48040047667407 144120143002221