Check the properties of a positive integer to enter the number in the search box. If you input two numbers separated by a space, the properties of the pair like GCD are shown. If you separate two numbers by a comma, the sequences containing those numbers are listed.
42 = 2 × 3 × 7
6.48074069840786037843827216420323...
3.47602664488644963469710091885645...
0.0238095238095238
101010
6
52
2a
| Prime number | No |
| Hexagonal number | No |
| Perfect number | No |
| Deficient number | No |
| Abundant number | No |
| Mersenne number | No |
| Harshad number | Yes |
| Harmonic divisor number | No |
QR42 (sequence)
-1
Properties of the number 42: 42 has 8 divisors. The divisors of 42 are 1, 2, 3, 6, 7, 14, 21, 42 and the sum of them is 96. The factorization of 42 is 2 × 3 × 7. The square and cube of 42 are 1764 and 74088 respectively. The square root and cube root of 42 are 6.48074069840786037843827216420323... and 3.47602664488644963469710091885645.... The binary, octal, hexadecimal of 42 are 101010, 52, 2a. 42 is not a prime number, not hexagonal number, not perfect number, not deficient number, not Mersenne number, not Mersenne number, Harshad number, not harmonic divisor number.
-0.91652154791563378299912301372387...
-0.39998531498835127040436532297463...
2.29138799243748625400485252612270...
0.66913060635885823757007528911345...
0.74314482547739424411759046051884...
0.90040404429783993389690976982820...
3.73766961828336841122677469684277...
1.62324929039790055718128769512987...
5.39231742277876069380226908833720...