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Number 1225

Prime factorization

Factorization 5 * 5 * 7 * 7
Divisors 1, 5, 7, 25, 35, 49, 175, 245, 1225
Count of divisors 9
Sum of divisors 1767

Basic properties

Is prime? × NO
Previous integer 1224
Next integer 1226
Previous prime number 1223
Next prime number 1229
Reciprocal 0.000816326530612
Square 1500625
Square root 35
Natural logarithm 7.110696122978827
Decimal logarithm 3.0881360887005513
Sine -0.21933702833760824
Cosine 0.9756491521033712
Tangent -0.22481137595901812

Expressions

Binary 10011001001
Octal 2311
Hexadecimal 4c9