Base | Representation |
---|---|
bin | 10001000000110… |
… | …10010101000101 |
3 | 100221112122001102 |
4 | 20200122111011 |
5 | 243013323211 |
6 | 22054505445 |
7 | 3352023221 |
oct | 1040322505 |
9 | 327478042 |
10 | 142714181 |
11 | 73616305 |
12 | 3b965285 |
13 | 2374a87c |
14 | 14d4d781 |
15 | c7e0a3b |
hex | 881a545 |
142714181 has 2 divisors, whose sum is σ = 142714182. Its totient is φ = 142714180.
The previous prime is 142714171. The next prime is 142714193. The reversal of 142714181 is 181417241.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 98704225 + 44009956 = 9935^2 + 6634^2 .
It is an emirp because it is prime and its reverse (181417241) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 142714181 - 226 = 75605317 is a prime.
It is a super-2 number, since 2×1427141812 = 40734674917001522, which contains 22 as substring.
It is a Chen prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (142714171) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71357090 + 71357091.
It is an arithmetic number, because the mean of its divisors is an integer number (71357091).
Almost surely, 2142714181 is an apocalyptic number.
It is an amenable number.
142714181 is a deficient number, since it is larger than the sum of its proper divisors (1).
142714181 is an equidigital number, since it uses as much as digits as its factorization.
142714181 is an evil number, because the sum of its binary digits is even.
The product of its digits is 1792, while the sum is 29.
The square root of 142714181 is about 11946.3040728085. The cubic root of 142714181 is about 522.5835199929.
The spelling of 142714181 in words is "one hundred forty-two million, seven hundred fourteen thousand, one hundred eighty-one".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.070 sec. • engine limits •