Base | Representation |
---|---|
bin | 1000010011001001010… |
… | …1101100010000011111 |
3 | 111122000112112121201020 |
4 | 2010302111230100133 |
5 | 4314000041432441 |
6 | 145255531215223 |
7 | 13205140660230 |
oct | 2046225542037 |
9 | 448015477636 |
10 | 142578467871 |
11 | 55515912224 |
12 | 237712a7513 |
13 | 105a2b36328 |
14 | 6c87c67087 |
15 | 3a9729be66 |
hex | 213256c41f |
142578467871 has 16 divisors (see below), whose sum is σ = 217309897728. Its totient is φ = 81455608800.
The previous prime is 142578467861. The next prime is 142578467879. The reversal of 142578467871 is 178764875241.
It is not a de Polignac number, because 142578467871 - 218 = 142578205727 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (142578467879) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 643020 + ... + 835841.
It is an arithmetic number, because the mean of its divisors is an integer number (13581868608).
Almost surely, 2142578467871 is an apocalyptic number.
142578467871 is a deficient number, since it is larger than the sum of its proper divisors (74731429857).
142578467871 is a wasteful number, since it uses less digits than its factorization.
142578467871 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1483462.
The product of its digits is 21073920, while the sum is 60.
The spelling of 142578467871 in words is "one hundred forty-two billion, five hundred seventy-eight million, four hundred sixty-seven thousand, eight hundred seventy-one".
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