Base | Representation |
---|---|
bin | 1010100100110101… |
… | …0001110000101001 |
3 | 21022211202111211100 |
4 | 2221031101300221 |
5 | 21303220030441 |
6 | 1145405552013 |
7 | 130230441441 |
oct | 25115216051 |
9 | 7284674740 |
10 | 2838830121 |
11 | 122749a0a6 |
12 | 672875609 |
13 | 3631a444a |
14 | 1cd051121 |
15 | 119359cb6 |
hex | a9351c29 |
2838830121 has 12 divisors (see below), whose sum is σ = 4101169540. Its totient is φ = 1892259360.
The previous prime is 2838830047. The next prime is 2838830167. The reversal of 2838830121 is 1210388382.
It can be written as a sum of positive squares in 2 ways, for example, as 2275290000 + 563540121 = 47700^2 + 23739^2 .
It is not a de Polignac number, because 2838830121 - 223 = 2830441513 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (2838830171) 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, 47895 + ... + 89283.
Almost surely, 22838830121 is an apocalyptic number.
It is an amenable number.
2838830121 is a deficient number, since it is larger than the sum of its proper divisors (1262339419).
2838830121 is a wasteful number, since it uses less digits than its factorization.
2838830121 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 49016 (or 49013 counting only the distinct ones).
The product of its (nonzero) digits is 18432, while the sum is 36.
The square root of 2838830121 is about 53280.6730531813. The cubic root of 2838830121 is about 1415.9452737276.
The spelling of 2838830121 in words is "two billion, eight hundred thirty-eight million, eight hundred thirty thousand, one hundred twenty-one".
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