Base | Representation |
---|---|
bin | 1000010100001111010… |
… | …0101110110010111001 |
3 | 111122202222112022121122 |
4 | 2011003310232302321 |
5 | 4320100141124101 |
6 | 145345010515025 |
7 | 13215332260535 |
oct | 2050364566271 |
9 | 448688468548 |
10 | 142871817401 |
11 | 55656464055 |
12 | 23833595a75 |
13 | 1061b846031 |
14 | 6cb4bc8bc5 |
15 | 3ab2de551b |
hex | 2143d2ecb9 |
142871817401 has 12 divisors (see below), whose sum is σ = 153796699836. Its totient is φ = 132263147520.
The previous prime is 142871817383. The next prime is 142871817421. The reversal of 142871817401 is 104718178241.
142871817401 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It can be written as a sum of positive squares in 6 ways, for example, as 9921156025 + 132950661376 = 99605^2 + 364624^2 .
It is not a de Polignac number, because 142871817401 - 226 = 142804708537 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (142871817421) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1066040 + ... + 1192553.
It is an arithmetic number, because the mean of its divisors is an integer number (12816391653).
Almost surely, 2142871817401 is an apocalyptic number.
It is an amenable number.
142871817401 is a deficient number, since it is larger than the sum of its proper divisors (10924882435).
142871817401 is an equidigital number, since it uses as much as digits as its factorization.
142871817401 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2258732 (or 2258671 counting only the distinct ones).
The product of its (nonzero) digits is 100352, while the sum is 44.
The spelling of 142871817401 in words is "one hundred forty-two billion, eight hundred seventy-one million, eight hundred seventeen thousand, four hundred one".
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