1,000,000 seconds	≈ 11.5 days	≈ 278 hours	≈ 16,667 minutes
1,000,000,000 seconds	≈ 31 years + 8 months + 7.77 days	≈ 11,574 days
1 week	= 168 hours	= 10,080 minutes	= 604,800 seconds
earth’s polar circumference	≈ 40,007.863 km	≈ 21,600 nmi
earth’s equatorial circumference	≈ 40,075.017 km	≈ 21,563.8047 nmi
volume of FINA-compliant Olympic-size swimming pool	≥ 2,500,000 L	≥ 2,500 m3

e to 500 decimal digits	2.71828182845904523536028747135266249775724709369995957496696762772407663035354759457138217852516642742746639193200305992181741359662904357290033429526059563073813232862794349076323382988075319525101901157383418793070215408914993488416750924476146066808226480016847741185374234544243710753907774499206955170276183860626133138458300075204493382656029760673711320070932870912744374704723069697720931014169283681902551510865746377211125238978442505695369677078544996996794686445490598793163688923009879312
pi to 500 decimal digits	3.14159265358979323846264338327950288419716939937510582097494459230781640628620899862803482534211706798214808651328230664709384460955058223172535940812848111745028410270193852110555964462294895493038196442881097566593344612847564823378678316527120190914564856692346034861045432664821339360726024914127372458700660631558817488152092096282925409171536436789259036001133053054882046652138414695194151160943305727036575959195309218611738193261179310511854807446237996274956735188575272489122793818301194912
tau to 500 decimal digits	6.28318530717958647692528676655900576839433879875021164194988918461563281257241799725606965068423413596429617302656461329418768921910116446345071881625696223490056820540387704221111928924589790986076392885762195133186689225695129646757356633054240381829129713384692069722090865329642678721452049828254744917401321263117634976304184192565850818343072873578518072002266106109764093304276829390388302321886611454073151918390618437223476386522358621023709614892475992549913470377150544978245587636602389824
phi to 500 decimal digits	1.61803398874989484820458683436563811772030917980576286213544862270526046281890244970720720418939113748475408807538689175212663386222353693179318006076672635443338908659593958290563832266131992829026788067520876689250171169620703222104321626954862629631361443814975870122034080588795445474924618569536486444924104432077134494704956584678850987433944221254487706647809158846074998871240076521705751797883416625624940758906970400028121042762177111777805315317141011704666599146697987317613560067087480710