1010001

1010001 is a binary numeral consisting of seven digits. In base-2, it represents the decimal value 81. The value is obtained by summing 2^6 (64), 2^4 (16), and 2^0 (1).

81 is notable as a square (9^2) and as a higher power (3^4). Its prime factorization is 3^4; it is an odd number.

In the context of ASCII, 81 is the decimal code for the uppercase letter Q in standard 7-bit ASCII; the 7-bit binary representation is 1010001, while the common 8-bit form is 01010001.

Because 1010001 uses seven bits, it can be used as a compact binary token in discussions of binary encodings or computer science examples. As a seven-bit value, it ranges from 0 to 127.

Other usages of the exact string "1010001" may appear as identifiers, model numbers, or data tokens, but its most standard mathematical interpretation is as the binary representation of 81.