Base | Representation |
---|---|
bin | 1111001001010010… |
… | …11101001110100011 |
3 | 202222122222122012200 |
4 | 13210221131032203 |
5 | 113123021241123 |
6 | 3422500224243 |
7 | 405331462311 |
oct | 74451351643 |
9 | 22878878180 |
10 | 8131040163 |
11 | 34a283a904 |
12 | 16ab09b083 |
13 | 9c773418c |
14 | 571c590b1 |
15 | 328c82143 |
hex | 1e4a5d3a3 |
8131040163 has 12 divisors (see below), whose sum is σ = 11767385448. Its totient is φ = 5410285920.
The previous prime is 8131040107. The next prime is 8131040167. The reversal of 8131040163 is 3610401318.
It is not a de Polignac number, because 8131040163 - 217 = 8130909091 is a prime.
It is a super-2 number, since 2×81310401632 (a number of 21 digits) contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (8131040167) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 862345 + ... + 871722.
It is an arithmetic number, because the mean of its divisors is an integer number (980615454).
Almost surely, 28131040163 is an apocalyptic number.
8131040163 is a deficient number, since it is larger than the sum of its proper divisors (3636345285).
8131040163 is a wasteful number, since it uses less digits than its factorization.
8131040163 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1734594 (or 1734591 counting only the distinct ones).
The product of its (nonzero) digits is 1728, while the sum is 27.
The square root of 8131040163 is about 90172.2804580210. The cubic root of 8131040163 is about 2010.8609269535.
The spelling of 8131040163 in words is "eight billion, one hundred thirty-one million, forty thousand, one hundred sixty-three".
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