Base | Representation |
---|---|
bin | 1000011110111011110… |
… | …0111100001000110111 |
3 | 111221012001221001200111 |
4 | 2013232330330020313 |
5 | 4341440133420033 |
6 | 150541531323451 |
7 | 13346433660460 |
oct | 2075674741067 |
9 | 457161831614 |
10 | 145742873143 |
11 | 5689a06379a |
12 | 242b4bb0587 |
13 | 109885c149a |
14 | 70a8227d67 |
15 | 3bceeb87cd |
hex | 21eef3c237 |
145742873143 has 24 divisors (see below), whose sum is σ = 173946857184. Its totient is φ = 119575522560.
The previous prime is 145742873131. The next prime is 145742873161. The reversal of 145742873143 is 341378247541.
It is not a de Polignac number, because 145742873143 - 217 = 145742742071 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 (145742873113) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 506805 + ... + 740497.
It is an arithmetic number, because the mean of its divisors is an integer number (7247785716).
Almost surely, 2145742873143 is an apocalyptic number.
145742873143 is a deficient number, since it is larger than the sum of its proper divisors (28203984041).
145742873143 is an equidigital number, since it uses as much as digits as its factorization.
145742873143 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 233835 (or 233794 counting only the distinct ones).
The product of its digits is 2257920, while the sum is 49.
The spelling of 145742873143 in words is "one hundred forty-five billion, seven hundred forty-two million, eight hundred seventy-three thousand, one hundred forty-three".
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