Base | Representation |
---|---|
bin | 1000100110110000010… |
… | …1000111011111010001 |
3 | 112010121101010022220221 |
4 | 2021230011013133101 |
5 | 4410240043400120 |
6 | 151530122433041 |
7 | 13452444462103 |
oct | 2115405073721 |
9 | 463541108827 |
10 | 147842168785 |
11 | 57777060673 |
12 | 247a0062781 |
13 | 10c314c385c |
14 | 7226d6d573 |
15 | 3ca44420aa |
hex | 226c1477d1 |
147842168785 has 4 divisors (see below), whose sum is σ = 177410602548. Its totient is φ = 118273735024.
The previous prime is 147842168783. The next prime is 147842168807. The reversal of 147842168785 is 587861248741.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 587861248741 = 13 ⋅45220096057.
It can be written as a sum of positive squares in 2 ways, for example, as 116764357264 + 31077811521 = 341708^2 + 176289^2 .
It is a cyclic number.
It is not a de Polignac number, because 147842168785 - 21 = 147842168783 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (147842168783) 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, 14784216874 + ... + 14784216883.
It is an arithmetic number, because the mean of its divisors is an integer number (44352650637).
Almost surely, 2147842168785 is an apocalyptic number.
It is an amenable number.
147842168785 is a deficient number, since it is larger than the sum of its proper divisors (29568433763).
147842168785 is an equidigital number, since it uses as much as digits as its factorization.
147842168785 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 29568433762.
The product of its digits is 24084480, while the sum is 61.
The spelling of 147842168785 in words is "one hundred forty-seven billion, eight hundred forty-two million, one hundred sixty-eight thousand, seven hundred eighty-five".
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