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.
1 =
| Factor | Count |
|---|
1
1
1.0000000000000000
1
1
1
1
| Prime number | No |
| Hexagonal number | Yes |
| Perfect number | No |
| Deficient number | Yes |
| Abundant number | No |
| Mersenne number | Yes |
| Harshad number | Yes |
| Harmonic divisor number | Yes |
QR1 (sequence)
1
Properties of the number 1: 1 has 1 divisors. The divisors of 1 are 1 and the sum of them is 1. The factorization of 1 is . The square and cube of 1 are 1 and 1 respectively. The square root and cube root of 1 are 1 and 1. The binary, octal, hexadecimal of 1 are 1, 1, 1. 1 is not a prime number, hexagonal number, not perfect number, deficient number, not Mersenne number, Mersenne number, Harshad number, harmonic divisor number.
0.84147098480789650487565722869476...
0.54030230586813976501048273348715...
1.55740772465490207032701164280297...
0.01745240643728351165320233917555...
0.99984769515639126957751159352483...
0.01745506492821758542932641944390...
0.00000000000000000000000000000000...
0.00000000000000000000000000000000...
0.00000000000000000000000000000000...