Base | Representation |
---|---|
bin | 1011000110100111… |
… | …0001010010011101 |
3 | 21200201100221201022 |
4 | 2301221301102131 |
5 | 22101003021041 |
6 | 1211430453525 |
7 | 133600655666 |
oct | 26151612235 |
9 | 7621327638 |
10 | 2980517021 |
11 | 129a473609 |
12 | 6b22042a5 |
13 | 386652551 |
14 | 203bb436d |
15 | 1269e624b |
hex | b1a7149d |
2980517021 has 8 divisors (see below), whose sum is σ = 3084424920. Its totient is φ = 2876684608.
The previous prime is 2980516997. The next prime is 2980517039. The reversal of 2980517021 is 1207150892.
2980517021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It can be written as a sum of positive squares in 4 ways, for example, as 29311396 + 2951205625 = 5414^2 + 54325^2 .
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 2980517021 - 214 = 2980500637 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2980517081) 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, 68375 + ... + 103131.
It is an arithmetic number, because the mean of its divisors is an integer number (385553115).
Almost surely, 22980517021 is an apocalyptic number.
It is an amenable number.
2980517021 is a deficient number, since it is larger than the sum of its proper divisors (103907899).
2980517021 is a wasteful number, since it uses less digits than its factorization.
2980517021 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 37743.
The product of its (nonzero) digits is 10080, while the sum is 35.
The square root of 2980517021 is about 54594.1115963984. Note that the first 3 decimals coincide. The cubic root of 2980517021 is about 1439.1206406155.
The spelling of 2980517021 in words is "two billion, nine hundred eighty million, five hundred seventeen thousand, twenty-one".
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