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The United States fifty-dollar bill (US$50) is a denomination of United States currency. The 18th U.S. president (1869-1877), Ulysses S. Grant, is featured on the obverse, while the U.S. Capitol is featured on the reverse. All current-issue $50 bills are Federal Reserve Notes. As of December 2018, the average life of a $50 bill in circulation ...
The $50 bill was the largely forgotten cousin in the U.S. paper currency family until a few years ago, when it suddenly became very popular. A record number of the notes were printed in 2022, and ...
In mathematics. Fifty is the smallest number that is the sum of two non-zero square numbers in two distinct ways: 50 = 1 2 + 7 2 = 5 2 + 5 2 (the former is the sum of squares of divisors of 7). [1] It is also the sum of three squares, 50 = 3 2 + 4 2 + 5 2 (that feature in the smallest Pythagorean triple), and the sum of four squares, 50 = 6 2 ...
A list of articles about numbers (not about numerals). Topics include powers of ten, notable integers, prime and cardinal numbers, and the myriad system.
Until the pandemic, the $50 had been one of the rarest bills ordered for years, save for the $2 bill. But for 2021 and 2022, the Fed ordered up mor e $50s than $10s and $5s.
The 50 stars on the flag represent the 50 U.S. states, and the 13 stripes represent the thirteen British colonies that won independence from Great Britain in the American Revolutionary War. [1] The flag was created as an item of military equipment to identity US ships and forts.
Twenty is a pronic number, as it is the product of consecutive integers, namely 4 and 5. [3] It is also the second pronic sum number (or pronic pyramid) after 2, being the sum of the first three pronic numbers: 2 + 6 + 12. It is the third composite number to be the product of a squared prime and a prime (and also the second member of the 22 × ...
40 is the smallest number with exactly nine solutions to the equation Euler's totient function (for values 41, 55, 75, 82, 88, 100, 110, 132, and 150 of ). Adding up some subsets of the divisors of 40 (e.g., 1, 4, 5, 10, and 20) gives 40; hence, 40 is the ninth semiperfect number. [ 7 ] 40 is also the ninth refactorable number.