Base | Representation |
---|---|
bin | 1000010001011000000… |
… | …1101010010110100101 |
3 | 111120210102201110202011 |
4 | 2010112001222112211 |
5 | 4312011441031031 |
6 | 145140442114221 |
7 | 13160312303404 |
oct | 2042601522645 |
9 | 446712643664 |
10 | 142103455141 |
11 | 552a177211a |
12 | 2365a1ab971 |
13 | 105285bc6cb |
14 | 6c40b3763b |
15 | 3a6a71c6b1 |
hex | 211606a5a5 |
142103455141 has 4 divisors (see below), whose sum is σ = 150462481932. Its totient is φ = 133744428352.
The previous prime is 142103455099. The next prime is 142103455157. The reversal of 142103455141 is 141554301241.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 141554301241 = 73 ⋅1939100017.
It can be written as a sum of positive squares in 2 ways, for example, as 108962709025 + 33140746116 = 330095^2 + 182046^2 .
It is a cyclic number.
It is not a de Polignac number, because 142103455141 - 213 = 142103446949 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (142103455181) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4179513370 + ... + 4179513403.
It is an arithmetic number, because the mean of its divisors is an integer number (37615620483).
Almost surely, 2142103455141 is an apocalyptic number.
It is an amenable number.
142103455141 is a deficient number, since it is larger than the sum of its proper divisors (8359026791).
142103455141 is an equidigital number, since it uses as much as digits as its factorization.
142103455141 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 8359026790.
The product of its (nonzero) digits is 9600, while the sum is 31.
Adding to 142103455141 its reverse (141554301241), we get a palindrome (283657756382).
The spelling of 142103455141 in words is "one hundred forty-two billion, one hundred three million, four hundred fifty-five thousand, one hundred forty-one".
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