1011001

1011001 is a binary numeral consisting of seven bits. In base-2 notation it represents the decimal number 89. Because 1011001 equals 64+16+8+1, the value is 89.

89 is a prime number and is also a Fibonacci number (the 11th term). As a binary numeral, 1011001 has four 1 bits, a Hamming weight of 4, and is not a palindrome.

Hexadecimal representation of 89 is 0x59; in ASCII, decimal 89 corresponds to the character 'Y'. In 8-bit ASCII, 0x59 is 01011001, which yields the same letter when interpreted as standard ASCII, with a leading zero.

Context and usage: In computing and digital encoding, 1011001 can serve as a bit pattern or identifier. In education, it illustrates binary-to-decimal conversion and properties of Fibonacci primes. The sequence may appear in puzzles and compact encodings.