Base | Representation |
---|---|
bin | 1111001101000110… |
… | …11011101111100000 |
3 | 210001220011011022220 |
4 | 13212203123233200 |
5 | 113204213000043 |
6 | 3430001431040 |
7 | 406200326304 |
oct | 74643335740 |
9 | 23056134286 |
10 | 8163015648 |
11 | 350989a527 |
12 | 16b993b480 |
13 | a0124b398 |
14 | 5761bdd04 |
15 | 32b99b483 |
hex | 1e68dbbe0 |
8163015648 has 96 divisors (see below), whose sum is σ = 22161807360. Its totient is φ = 2629286400.
The previous prime is 8163015643. The next prime is 8163015677. The reversal of 8163015648 is 8465103618.
It is a tau number, because it is divible by the number of its divisors (96).
It is a super-3 number, since 3×81630156483 (a number of 31 digits) contains 333 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (8163015643) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 344998 + ... + 367898.
It is an arithmetic number, because the mean of its divisors is an integer number (230852160).
Almost surely, 28163015648 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 8163015648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11080903680).
8163015648 is an abundant number, since it is smaller than the sum of its proper divisors (13998791712).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
8163015648 is a wasteful number, since it uses less digits than its factorization.
8163015648 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 23040 (or 23032 counting only the distinct ones).
The product of its (nonzero) digits is 138240, while the sum is 42.
The square root of 8163015648 is about 90349.4086754307. The cubic root of 8163015648 is about 2013.4933967252.
The spelling of 8163015648 in words is "eight billion, one hundred sixty-three million, fifteen thousand, six hundred forty-eight".
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