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The Day of Five Billion, 11 July 1987, was designated by the United Nations Population Fund as the approximate day on which the world population reached five billion. Matej Gašpar from Zagreb , Croatia (then SR Croatia , SFR Yugoslavia ), was chosen as the symbolic 5-billionth person alive on Earth .
1/52! chance of a specific shuffle Mathematics: The chances of shuffling a standard 52-card deck in any specific order is around 1.24 × 10 −68 (or exactly 1 ⁄ 52!) [4] Computing: The number 1.4 × 10 −45 is approximately equal to the smallest positive non-zero value that can be represented by a single-precision IEEE floating-point value.
Archived (PDF) from the original on 2016-08-01; Hunhold, Laslo (2016-11-08). The Unum Number Format: Mathematical Foundations, Implementation and Comparison to IEEE 754 Floating-Point Numbers (PDF) (Bachelor thesis). Universität zu Köln, Mathematisches Institut. arXiv: 1701.00722v1. Archived (PDF) from the original on 2017-01-07
"Human population numbers as a function of food supply" (PDF). Russel Hopfenburg, David Pimentel, Duke University, Durham, NC; Cornell University, Ithaca, NY. Guinnane, Timothy W. (2023). "We Do Not Know the Population of Every Country in the World for the Past Two Thousand Years". The Journal of Economic History. 83 (3): 912– 938.
The number of neuronal connections in the human brain (estimated at 10 14), or 100 trillion/100 T; The Avogadro constant is the number of "elementary entities" (usually atoms or molecules) in one mole; the number of atoms in 12 grams of carbon-12 – approximately 6.022 × 10 23, or 602.2 sextillion/60.2Sx.
Here we can show how to convert a base-10 real number into an IEEE 754 binary32 format using the following outline: Consider a real number with an integer and a fraction part such as 12.375; Convert and normalize the integer part into binary; Convert the fraction part using the following technique as shown here
The world population more than tripled during the 20th century from about 1.65 billion in 1900 to 5.97 billion in 1999. [16] [17] [18] It reached the 2 billion mark in 1927, the 3 billion mark in 1960, 4 billion in 1974, and 5 billion in 1987. [19] The overall population of the world is approximately 8 billion as of November 2022.
The Day of Eight Billion, marked on 15 November 2022, was designated by the United Nations as the approximate day when the world population reached eight billion people. [ 2 ]