9640

9640 is an integer in the decimal system, the natural number that follows 9639 and precedes 9641. It is an even, composite number with several notable arithmetic properties.

Its prime factorization is 2^3 × 5 × 241. From this factorization, the positive divisors are: 1, 2, 4, 8, 5, 10, 20, 40, 241, 482, 964, 1928, 1205, 2410, 4820, and 9640. As a consequence, 9640 is divisible by 8, 5, and 40, among other divisors. The sum of its digits is 9 + 6 + 4 + 0 = 19, so it is not divisible by 3 or 9, and its digital root is 1.

In different base representations, 9640 appears as 0x25A8 in hexadecimal and as 10010110101000 in binary. The binary form confirms the sum-of-powers representation 9640 = 2^13 + 2^10 + 2^8 + 2^7 + 2^5 + 2^3.

9640 can also be expressed as the sum of two squares: 9640 = 98^2 + 6^2. This aligns with its odd prime factors, 5 and 241, both congruent to 1 modulo 4, which guarantees a representation as a sum of two squares.

These properties illustrate 9640 as a rich example of an everyday integer with transparent factorization, divisor structure, and multiple base representations.