Base | Representation |
---|---|
bin | 10111001100100… |
… | …010001111111111 |
3 | 1000010021110212210 |
4 | 113030202033333 |
5 | 1244111140413 |
6 | 102341031503 |
7 | 12433552020 |
oct | 2714421777 |
9 | 1003243783 |
10 | 389161983 |
11 | 18a743181 |
12 | aa3b5593 |
13 | 62818482 |
14 | 39982c47 |
15 | 242723c3 |
hex | 173223ff |
389161983 has 16 divisors (see below), whose sum is σ = 595675136. Its totient is φ = 221378400.
The previous prime is 389161957. The next prime is 389161999.
389161983 is nontrivially palindromic in base 10.
It is not a de Polignac number, because 389161983 - 25 = 389161951 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (389161183) 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, 36868 + ... + 46233.
It is an arithmetic number, because the mean of its divisors is an integer number (37229696).
Almost surely, 2389161983 is an apocalyptic number.
389161983 is a deficient number, since it is larger than the sum of its proper divisors (206513153).
389161983 is a wasteful number, since it uses less digits than its factorization.
389161983 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 83334.
The product of its digits is 279936, while the sum is 48.
The square root of 389161983 is about 19727.1889279745. The cubic root of 389161983 is about 730.0906767952.
The spelling of 389161983 in words is "three hundred eighty-nine million, one hundred sixty-one thousand, nine hundred eighty-three".
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