Base | Representation |
---|---|
bin | 1111001010100111… |
… | …11010001101010010 |
3 | 210000102221000222122 |
4 | 13211103322031102 |
5 | 113133343401124 |
6 | 3423534534242 |
7 | 405525202535 |
oct | 74523721522 |
9 | 23012830878 |
10 | 8142168914 |
11 | 34a9051020 |
12 | 16b2967382 |
13 | 9c9b2c739 |
14 | 573514a1c |
15 | 329c2e75e |
hex | 1e54fa352 |
8142168914 has 32 divisors (see below), whose sum is σ = 14055413760. Its totient is φ = 3498541200.
The previous prime is 8142168913. The next prime is 8142168949. The reversal of 8142168914 is 4198612418.
It is not an unprimeable number, because it can be changed into a prime (8142168911) 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, 172499 + ... + 214569.
It is an arithmetic number, because the mean of its divisors is an integer number (439231680).
Almost surely, 28142168914 is an apocalyptic number.
8142168914 is a deficient number, since it is larger than the sum of its proper divisors (5913244846).
8142168914 is a wasteful number, since it uses less digits than its factorization.
8142168914 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 42566.
The product of its digits is 110592, while the sum is 44.
The square root of 8142168914 is about 90233.9676286043. The cubic root of 8142168914 is about 2011.7779137222. Note that the first 3 decimals are identical.
The spelling of 8142168914 in words is "eight billion, one hundred forty-two million, one hundred sixty-eight thousand, nine hundred fourteen".
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