Base | Representation |
---|---|
bin | 111011011101001011… |
… | …0100001111111001111 |
3 | 110012120021102110102110 |
4 | 1312322112201333033 |
5 | 4042442203121033 |
6 | 134353340355103 |
7 | 12140020341261 |
oct | 1667226417717 |
9 | 405507373373 |
10 | 127680520143 |
11 | 4a170363630 |
12 | 208b3b45a93 |
13 | c06a49bc47 |
14 | 6273409b31 |
15 | 34c43e5363 |
hex | 1dba5a1fcf |
127680520143 has 16 divisors (see below), whose sum is σ = 185816365056. Its totient is φ = 77340781440.
The previous prime is 127680520067. The next prime is 127680520157. The reversal of 127680520143 is 341025086721.
It is not a de Polignac number, because 127680520143 - 214 = 127680503759 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (127680524143) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 971055 + ... + 1094672.
It is an arithmetic number, because the mean of its divisors is an integer number (11613522816).
Almost surely, 2127680520143 is an apocalyptic number.
127680520143 is a deficient number, since it is larger than the sum of its proper divisors (58135844913).
127680520143 is a wasteful number, since it uses less digits than its factorization.
127680520143 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2067614.
The product of its (nonzero) digits is 80640, while the sum is 39.
The spelling of 127680520143 in words is "one hundred twenty-seven billion, six hundred eighty million, five hundred twenty thousand, one hundred forty-three".
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