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.
45 = 3 × 3 × 5
6.70820393249936941515443322714418...
3.55689330449006257950372855702881...
0.0222222222222222
101101
6
55
2d
| Prime number | No |
| Hexagonal number | Yes |
| Perfect number | No |
| Deficient number | No |
| Abundant number | No |
| Mersenne number | No |
| Harshad number | Yes |
| Harmonic divisor number | No |
QR45 (sequence)
0
Properties of the number 45: 45 has 6 divisors. The divisors of 45 are 1, 3, 5, 9, 15, 45 and the sum of them is 78. The factorization of 45 is 3 × 3 × 5. The square and cube of 45 are 2025 and 91125 respectively. The square root and cube root of 45 are 6.70820393249936941515443322714418... and 3.55689330449006257950372855702881.... The binary, octal, hexadecimal of 45 are 101101, 55, 2d. 45 is not a prime number, hexagonal number, not perfect number, not deficient number, not Mersenne number, not Mersenne number, Harshad number, not harmonic divisor number.
0.85090352453411843836050820755190...
0.52532198881772973475534627141315...
1.61977519054386154273572628881084...
0.70710678118654746171500846685376...
0.70710678118654757273731092936941...
1
3.80666248977031962397177267121151...
1.65321251377534372828392861265456...
5.49185309632967477710963066783734...