Base | Representation |
---|---|
bin | 111011110110110111… |
… | …1001000001111001011 |
3 | 110021210100120222021202 |
4 | 1313231233020033023 |
5 | 4101223401400113 |
6 | 135015054054415 |
7 | 12200256061040 |
oct | 1675557101713 |
9 | 407710528252 |
10 | 128542606283 |
11 | 4a572a4a713 |
12 | 20ab47aa40b |
13 | c176c7c4a0 |
14 | 6315ad71c7 |
15 | 3524e33258 |
hex | 1dedbc83cb |
128542606283 has 32 divisors (see below), whose sum is σ = 161480148480. Its totient is φ = 99620801280.
The previous prime is 128542606271. The next prime is 128542606303. The reversal of 128542606283 is 382606245821.
It is a happy number.
It is not a de Polignac number, because 128542606283 - 24 = 128542606267 is a prime.
It is not an unprimeable number, because it can be changed into a prime (128542606223) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 792428 + ... + 940758.
It is an arithmetic number, because the mean of its divisors is an integer number (5046254640).
Almost surely, 2128542606283 is an apocalyptic number.
128542606283 is a gapful number since it is divisible by the number (13) formed by its first and last digit.
128542606283 is a deficient number, since it is larger than the sum of its proper divisors (32937542197).
128542606283 is a wasteful number, since it uses less digits than its factorization.
128542606283 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 148547.
The product of its (nonzero) digits is 1105920, while the sum is 47.
The spelling of 128542606283 in words is "one hundred twenty-eight billion, five hundred forty-two million, six hundred six thousand, two hundred eighty-three".
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