Base | Representation |
---|---|
bin | 10111001011111… |
… | …010101111101011 |
3 | 1000002222020220202 |
4 | 113023322233223 |
5 | 1244041001141 |
6 | 102333342415 |
7 | 12432306200 |
oct | 2713725753 |
9 | 1002866822 |
10 | 389000171 |
11 | 18a64264a |
12 | aa337a0b |
13 | 6278c921 |
14 | 3993dca7 |
15 | 2423e49b |
hex | 172fabeb |
389000171 has 24 divisors (see below), whose sum is σ = 495681120. Its totient is φ = 302975232.
The previous prime is 389000119. The next prime is 389000179. The reversal of 389000171 is 171000983.
It is not a de Polignac number, because 389000171 - 26 = 389000107 is a prime.
It is a super-2 number, since 2×3890001712 = 302642266076058482, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (29).
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (389000179) 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, 16106 + ... + 32208.
It is an arithmetic number, because the mean of its divisors is an integer number (20653380).
Almost surely, 2389000171 is an apocalyptic number.
389000171 is a deficient number, since it is larger than the sum of its proper divisors (106680949).
389000171 is a wasteful number, since it uses less digits than its factorization.
389000171 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 16163 (or 16156 counting only the distinct ones).
The product of its (nonzero) digits is 1512, while the sum is 29.
The square root of 389000171 is about 19723.0872583376. The cubic root of 389000171 is about 729.9894731703.
The spelling of 389000171 in words is "three hundred eighty-nine million, one hundred seventy-one", and thus it is an aban number.
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