642979785052836076032

Names of 642979785052836076032

• Cardinal: 642979785052836076032 can be written as Six hundred forty-two quintillion, nine hundred seventy-nine quadrillion, seven hundred eighty-five trillion, fifty-two billion, eight hundred thirty-six million, seventy-six thousand and thirty-two.

Scientific notation

• Scientific notation: 6.42979785052836076032 × 10²⁰

Factors of 642979785052836076032

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 15
• Sum of prime factors: 1409449935669287

Divisors of 642979785052836076032

• Number of divisors d(n): 200
• Complete list of divisors:
  1 2 3 4 6 8 9 11 12 16 18 22 24 27 32 33 36 44 48 54 64 66 72 81 88 96 99 108 128 132 144 162 176 192 198 216 256 264 288 297 324 352 384 396 432 512 528 576 594 648 704 768 792 864 891 1056 1152 1188 1296 1408 1536 1584 1728 1782 2112 2304 2376 2592 2816 3168 3456 3564 4224 4608 4752 5184 5632 6336 6912 7128 8448 9504 10368 12672 13824 14256 16896 19008 20736 25344 28512 38016 41472 50688 57024 76032 114048 152064 228096 456192 1409449935669271 2818899871338542 4228349807007813 5637799742677084 8456699614015626 11275599485354168 12685049421023439 15503949292361981 16913399228031252 22551198970708336 25370098842046878 31007898584723962 33826798456062504 38055148263070317 45102397941416672 46511847877085943 50740197684093756 62015797169447924 67653596912125008 76110296526140634 90204795882833344 93023695754171886 101480395368187512 114165444789210951 124031594338895848 135307193824250016 139535543631257829 152220593052281268 180409591765666688 186047391508343772 202960790736375024 228330889578421902 248063188677791696 270614387648500032 279071087262515658 304441186104562536 360819183531333376 372094783016687544 405921581472750048 418606630893773487 456661779156843804 496126377355583392 541228775297000064 558142174525031316 608882372209125072 721638367062666752 744189566033375088 811843162945500096 837213261787546974 913323558313687608 992252754711166784 1082457550594000128 1116284349050062632 1217764744418250144 1255819892681320461 1488379132066750176 1623686325891000192 1674426523575093948 1826647116627375216 1984505509422333568 2164915101188000256 2232568698100125264 2435529488836500288 2511639785362640922 2976758264133500352 3247372651782000384 3348853047150187896 3653294233254750432 3969011018844667136 4465137396200250528 4871058977673000576 5023279570725281844 5953516528267000704 6494745303564000768 6697706094300375792 7306588466509500864 7938022037689334272 8930274792400501056 9742117955346001152 10046559141450563688 11907033056534001408 13395412188600751584 14613176933019001728 17860549584801002112 19484235910692002304 20093118282901127376 23814066113068002816 26790824377201503168 29226353866038003456 35721099169602004224 40186236565802254752 53581648754403006336 58452707732076006912 71442198339204008448 80372473131604509504 107163297508806012672 160744946263209019008 214326595017612025344 321489892526418038016 642979785052836076032
• Sum of all divisors σ(n): 2093591296643393951712
• Sum of proper divisors (its aliquot sum) s(n): 1450611511590557875680
• 642979785052836076032 is an abundant number, because the sum of its proper divisors (1450611511590557875680) is greater than itself. Its abundance is 807631726537721799648

Bases of 642979785052836076032

• Binary: 1000101101101100100011000100111101101001000111010100000001101000000000₂
• Hexadecimal: 0x22DB2313DA47501A00
• Base-36: 3RP24FBM1TWG00

Squares and roots of 642979785052836076032

• 642979785052836076032 squared (642979785052836076032²) is 413423003986591282617389677170459284865024
• 642979785052836076032 cubed (642979785052836076032³) is 265822634239196255052216828005162120282117206939328754921504768
• The square root of 642979785052836076032 is 25357046063.2313415379
• The cube root of 642979785052836076032 is 8631092.5407656805

Scales and comparisons

• 642,979,785,052,836,076,032 seconds is equal to 293,274,701,009 years, 3 weeks, 3 days, 15 hours, 30 minutes, 7 seconds.
• To count from 1 to 642,979,785,052,836,076,032 would take you about two hundred ninety-three billion, two hundred seventy-four million, seven hundred one thousand and nine years!

  This is a very rough estimate, based on a speaking rate of half a second every third order of magnitude. If you speak quickly, you could probably say any randomly-chosen number between one and a thousand in around half a second. Very big numbers obviously take longer to say, so we add half a second for every extra x1000. (We do not count involuntary pauses, bathroom breaks or the necessity of sleep in our calculation!)

• A cube with a volume of 642979785052836076032 cubic inches would be around 719257.7 feet tall.

Recreational maths with 642979785052836076032

• 642979785052836076032 backwards is 230670638250587979246
• 642979785052836076032 is a Harshad number.
• The number of decimal digits it has is: 21
• The sum of 642979785052836076032's digits is 99
• More coming soon!