Base | Representation |
---|---|
bin | 1111001101001000… |
… | …10100101001011010 |
3 | 210001220121000001120 |
4 | 13212210110221122 |
5 | 113204242424410 |
6 | 3430010430110 |
7 | 406202316660 |
oct | 74644245132 |
9 | 23056530046 |
10 | 8163248730 |
11 | 3509a3965a |
12 | 16b9a32336 |
13 | a013004c0 |
14 | 576240c30 |
15 | 32b9e5570 |
hex | 1e6914a5a |
8163248730 has 256 divisors, whose sum is σ = 25511915520. Its totient is φ = 1623379968.
The previous prime is 8163248677. The next prime is 8163248759. The reversal of 8163248730 is 378423618.
It is a super-3 number, since 3×81632487303 (a number of 31 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.
It is a Harshad number since it is a multiple of its sum of digits (42).
It is a Curzon number.
It is an unprimeable number.
It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 17479957 + ... + 17480423.
It is an arithmetic number, because the mean of its divisors is an integer number (99655920).
Almost surely, 28163248730 is an apocalyptic number.
It is a practical number, because each smaller number is the sum of distinct divisors of 8163248730, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12755957760).
8163248730 is an abundant number, since it is smaller than the sum of its proper divisors (17348666790).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
8163248730 is a wasteful number, since it uses less digits than its factorization.
8163248730 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 853.
The product of its (nonzero) digits is 193536, while the sum is 42.
The square root of 8163248730 is about 90350.6985584506. The cubic root of 8163248730 is about 2013.5125605825.
The spelling of 8163248730 in words is "eight billion, one hundred sixty-three million, two hundred forty-eight thousand, seven hundred thirty".
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