Base | Representation |
---|---|
bin | 1010100011000011… |
… | …0101100010011001 |
3 | 21022022201201121211 |
4 | 2220300311202121 |
5 | 21244312440424 |
6 | 1144542103121 |
7 | 130110200056 |
oct | 25060654231 |
9 | 7268651554 |
10 | 2831374489 |
11 | 1223267619 |
12 | 67027aaa1 |
13 | 361793a28 |
14 | 1cc07002d |
15 | 118885b94 |
hex | a8c35899 |
2831374489 has 2 divisors, whose sum is σ = 2831374490. Its totient is φ = 2831374488.
The previous prime is 2831374459. The next prime is 2831374583. The reversal of 2831374489 is 9844731382.
It is a happy number.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 2378025225 + 453349264 = 48765^2 + 21292^2 .
It is a cyclic number.
It is not a de Polignac number, because 2831374489 - 211 = 2831372441 is a prime.
It is a super-2 number, since 2×28313744892 = 16033362993920022242, which contains 22 as substring.
It is not a weakly prime, because it can be changed into another prime (2831374459) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1415687244 + 1415687245.
It is an arithmetic number, because the mean of its divisors is an integer number (1415687245).
Almost surely, 22831374489 is an apocalyptic number.
It is an amenable number.
2831374489 is a deficient number, since it is larger than the sum of its proper divisors (1).
2831374489 is an equidigital number, since it uses as much as digits as its factorization.
2831374489 is an evil number, because the sum of its binary digits is even.
The product of its digits is 1161216, while the sum is 49.
The square root of 2831374489 is about 53210.6614223127. The cubic root of 2831374489 is about 1414.7046192195.
The spelling of 2831374489 in words is "two billion, eight hundred thirty-one million, three hundred seventy-four thousand, four hundred eighty-nine".
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