384 (number)

Template:Infobox number 384 (three hundred [and] eighty-four) is the natural number following 383 and preceding 385.

In mathematics

384 is:

• the sum of a twin prime pair (191 + 193).
• the sum of six consecutive primes (53 + 59 + 61 + 67 + 71 + 73).
• the order of the hyperoctahedral group for n = 4
• the double factorial of 8.
• the 4-factorial of 12 ($12{!}_{(4)}=384$).
• an abundant number.
• the third 129-gonal number after 1, 129 and before 766 and 1275.
• a Harshad number in bases 2, 3, 4, 5, 7, 8, 9, 13, 17, and 62 other bases.
• a refactorable number.
• a Granville number.

Computing

Being a low multiple of a power of two (3 x 128), 384 occurs often in the field of computing. For example, the secure hash function SHA-384 has a 384-bit digest, the screen resolution of the Virtual Boy is 384x224, MP3 Audio layer 1 encoding is 384 kbps,Template:Citation needed and in 3G phones the WAN implementation of CDMA is up to 384 kbps.

External links

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