1e54
1E54 is the notation for the decimal number 1×10^54, written in scientific notation. The value is equal to 10 raised to the 54th power, i.e., a 1 followed by 54 zeros in decimal form.
Its uppercase "E" is the exponent marker used to denote powers of ten; the same value is
Usage of this form is common in science and engineering to express very large quantities succinctly. In
Numerical properties: 1E54 can be represented in floating-point formats within typical ranges (for example, IEEE 754
See also: scientific notation, exponent notation, floating-point arithmetic.