Base | Representation |
---|---|
bin | 10110100010000… |
… | …10111111010011 |
3 | 111011200010001011 |
4 | 23101002333103 |
5 | 341342034232 |
6 | 30431151351 |
7 | 4453425040 |
oct | 1321027723 |
9 | 434603034 |
10 | 189018067 |
11 | 97772087 |
12 | 53375557 |
13 | 30210814 |
14 | 1b1641c7 |
15 | 118da547 |
hex | b442fd3 |
189018067 has 32 divisors (see below), whose sum is σ = 233570304. Its totient is φ = 149536800.
The previous prime is 189018043. The next prime is 189018079. The reversal of 189018067 is 760810981.
It is not a de Polignac number, because 189018067 - 211 = 189016019 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (189018017) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 438342 + ... + 438772.
It is an arithmetic number, because the mean of its divisors is an integer number (7299072).
Almost surely, 2189018067 is an apocalyptic number.
189018067 is a deficient number, since it is larger than the sum of its proper divisors (44552237).
189018067 is a wasteful number, since it uses less digits than its factorization.
189018067 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 559.
The product of its (nonzero) digits is 24192, while the sum is 40.
The square root of 189018067 is about 13748.3841596022. The cubic root of 189018067 is about 573.8976404542.
The spelling of 189018067 in words is "one hundred eighty-nine million, eighteen thousand, sixty-seven".
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