163 (number)

163 is the natural number following one hundred sixty-two and preceding one hundred sixty-four.


Ordinal	One hundred and sixty-three
Cardinal	163rd
Factorization	prime number
Roman numeral	CLX
Binary	10100011
Hexadecimal	A3

Given 163, the Mertens function returns 0. Multiplied by -1, it is a Heegner number. 163 figures in an approximation of π, in which

\pi \approx {2^9 \over 163}

. Also, it appears in the Ramanujan constant, in which

e^{\pi \sqrt{163}}

almost equals the integer 262537412640768744. Martin Gardner famously asserted that this identity was exact in a 1975 April Fools' hoax in Scientific American; in fact the value is 262537412640768743.99999999999925007259... 163 is a strictly non-palindromic number, it is not palindromic in any base from base 2 to base 161. One hundred sixty-three is also:

The year AD 163 or 163 BC.

<< Previous

Word Browser

Next >>

viluppuram
john (jack) henry williams
topical
the five doctors
fort towson
sarajevo during ancient times
south coast metropole
trichocentrum
audrey munson
hyperkeratinization
caroline in the city

klieg light
cattleya
inter range instrumentation group time codes
upper hammonds plains, nova scotia
laelia
harmony korine
david finkelstein
civillian
sophronitis
terry fuckwitt
dermot chichester, 7th marquess of donegall

battle of revolax
battle of la corua
storsjodjuret
aastra technologies
battle of sacile
figure 8
rooted
hybrid bill
national union convention
eileen fulton
battle of abensberg

u.s. color coded war plans
thomas w. ferry
barrick gold
list of universities in mexico
instituto tecnolgico de villahermosa
battle of oporto
larry bryggman
extermination order (mormonism)
o'dea high school
godrej
importance sampling