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100,000 (one hundred thousand) is the natural number following 99,999 and preceding 100,001. In scientific notation, it is written as 105.
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Cardinal | one hundred thousand | |||
Ordinal | 100000th (one hundred thousandth) | |||
Factorization | 25 × 55 | |||
Greek numeral | ||||
Roman numeral | C | |||
Binary | 110000110101000002 | |||
Ternary | 120020112013 | |||
Senary | 20505446 | |||
Octal | 3032408 | |||
Duodecimal | 49A5412 | |||
Hexadecimal | 186A016 | |||
Egyptian hieroglyph | 𓆐 |
In Bangladesh, India, Pakistan and South Asia, one hundred thousand is called a lakh, and is written as 1,00,000. The Thai, Lao, Khmer and Vietnamese languages also have separate words for this number: แสน, ແສນ, សែន (all saen), and ức respectively. The Malagasy word is hetsy.[1]
In Cyrillic numerals, it is known as the legion (легион): or .
In astronomy, 100,000 metres, 100 kilometres, or 100 km (62 miles) is the altitude at which the Fédération Aéronautique Internationale (FAI) defines spaceflight to begin.
In paleoclimatology, the 100,000-year problem is a mismatch between the temperature record and the modeled incoming solar radiation.
In the Irish language, céad míle fáilte (pronounced [ˌceːd̪ˠ ˈmʲiːlʲə ˈfˠaːl̠ʲtʲə]) is a popular greeting meaning "a hundred thousand welcomes".
There are 9,592 primes less than 105, where 99,991 is the largest prime number smaller than 100,000.
Increments of 105 from 100,000 through a one million have the following prime counts:
In total, there are 68,906 prime numbers between 100,000 and 1,000,000.[61]