30401
30401 is a natural number that comes after 30400 and before 30402. In number theory, it is a composite, squarefree integer with prime factorization 7 × 43 × 101. Consequently, its positive divisors are 1, 7, 43, 101, 301, 707, 4343, and 30401. The sum of its positive divisors, denoted sigma(30401), equals (1+7)(1+43)(1+101) = 35904; the sum of proper divisors is 35904 − 30401 = 5503. Therefore 30401 is a deficient number, since the sum of its proper divisors is less than the number itself.
In standard positional notations, 30401 = 0x76C1 in hexadecimal, and in binary it is 0b0111011011000001.
The number is odd and composite, with no squared prime factors due to its squarefree factorization.
In other contexts, 30401 is used as a ZIP code in the United States, assigned by the