Base | Representation |
---|---|
bin | 1010100010010111… |
… | …0010011011010001 |
3 | 21022010021120121102 |
4 | 2220211302123101 |
5 | 21243042300121 |
6 | 1144400034145 |
7 | 130043445005 |
oct | 25045623321 |
9 | 7263246542 |
10 | 2828478161 |
11 | 1221669563 |
12 | 66b302955 |
13 | 360cbb622 |
14 | 1cb918705 |
15 | 1184b290b |
hex | a89726d1 |
2828478161 has 8 divisors (see below), whose sum is σ = 2920358400. Its totient is φ = 2736637920.
The previous prime is 2828478127. The next prime is 2828478179. The reversal of 2828478161 is 1618748282.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 2828478161 - 210 = 2828477137 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (2828478181) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 213005 + ... + 225893.
It is an arithmetic number, because the mean of its divisors is an integer number (365044800).
Almost surely, 22828478161 is an apocalyptic number.
It is an amenable number.
2828478161 is a deficient number, since it is larger than the sum of its proper divisors (91880239).
2828478161 is a wasteful number, since it uses less digits than its factorization.
2828478161 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 19999.
The product of its digits is 344064, while the sum is 47.
The square root of 2828478161 is about 53183.4387850203. The cubic root of 2828478161 is about 1414.2220683642. Note that the first 3 decimals are identical.
The spelling of 2828478161 in words is "two billion, eight hundred twenty-eight million, four hundred seventy-eight thousand, one hundred sixty-one".
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