# 384 (number)

Short description: Natural number
 ← 383 384 385 →
Cardinalthree hundred eighty-four
Ordinal384th
(three hundred eighty-fourth)
Factorization27 × 3
Greek numeralΤΠΔ´
Roman numeralCCCLXXXIV
Binary1100000002
Ternary1120203
Quaternary120004
Quinary30145
Senary14406
Octal6008
Duodecimal28012
VigesimalJ420
Base 36AO36

384 (three hundred [and] eighty-four) is the natural number following 383 and preceding 385. It is an even composite positive integer.

## 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.
• 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.

## Computing

Being a low multiple of a power of two, 384 occurs often in the field of computing. For example, the digest length of the secure hash function SHA-384, the screen resolution of Virtual Boy is 384x224, MP3 Audio layer 1 encoding is 384 kibps, in 3G phones the WAN implementation of CDMA is up to 384 kbit/s.