Base | Representation |
---|---|
bin | 111110011110010100111 |
3 | 10212000011010 |
4 | 13303302213 |
5 | 1011002033 |
6 | 111513303 |
7 | 23254230 |
oct | 7636247 |
9 | 3760133 |
10 | 2047143 |
11 | 117905a |
12 | 828833 |
13 | 568a37 |
14 | 3b4087 |
15 | 2a6863 |
hex | 1f3ca7 |
2047143 has 16 divisors (see below), whose sum is σ = 3165696. Its totient is φ = 1152480.
The previous prime is 2047141. The next prime is 2047159. The reversal of 2047143 is 3417402.
It is not a de Polignac number, because 2047143 - 21 = 2047141 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (21).
2047143 is a lucky number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2047141) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 805 + ... + 2177.
It is an arithmetic number, because the mean of its divisors is an integer number (197856).
22047143 is an apocalyptic number.
2047143 is a deficient number, since it is larger than the sum of its proper divisors (1118553).
2047143 is a wasteful number, since it uses less digits than its factorization.
2047143 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1454.
The product of its (nonzero) digits is 672, while the sum is 21.
The square root of 2047143 is about 1430.7840507917. The cubic root of 2047143 is about 126.9743681092.
The spelling of 2047143 in words is "two million, forty-seven thousand, one hundred forty-three".
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