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19 is the sixth Heegner number. [ 50] 67 and 163, respectively the 19th and 38th prime numbers, are the two largest Heegner numbers, of nine total. The sum of the first six Heegner numbers 1, 2, 3, 7, 11, and 19 sum to the seventh member and fourteenth prime number, 43. All of these numbers are prime, aside from the unit.
Worldwide distribution of country calling codes. Regions are coloured by first digit. Country calling codes, country dial-in codes, international subscriber dialing (ISD) codes, or most commonly, telephone country codes are telephone number prefixes for reaching telephone subscribers in foreign countries or areas via international telecommunication networks.
A prime number (or prime) is a natural number greater than 1 that has no positive divisors other than 1 and itself. By Euclid's theorem, there are an infinite number of prime numbers. Subsets of the prime numbers may be generated with various formulas for primes.
A list of articles about numbers (not about numerals). Topics include powers of ten, notable integers, prime and cardinal numbers, and the myriad system.
This is the minimum number of characters needed to encode a 32 bit number into 5 printable characters in a process similar to MIME-64 encoding, since 85 5 is only slightly bigger than 2 32. Such method is 6.7% more efficient than MIME-64 which encodes a 24 bit number into 4 printable characters. 89
19 (song) " 19 " is a song by British musician Paul Hardcastle, released as the first single from his self-titled fourth studio album Paul Hardcastle (1985). The song has a strong anti-war message, focusing on the United States ' involvement in the Vietnam War and the effect it had on the soldiers who served. The track was notable for early use ...
Classical Greek and Indian mathematicians made studies of the theory of rational numbers, as part of the general study of number theory. [19] The best known of these is Euclid's Elements, dating to roughly 300 BC. Of the Indian texts, the most relevant is the Sthananga Sutra, which also covers number theory as part of a general study of mathematics
268 7xx. 10. NANP member. Argentina. +54. 9/15. 10. All carriers: Claro, Movistar, Personal, Tuenti. 15 before the local number but after long distance area code for national calls (0 11 15 xxxx-xxxx) and 9 placed after the international access code excluding the 15 for international calls (+54 9 11 xxxx-xxxx).