28729368329474880

Names of 28729368329474880

• Cardinal: 28729368329474880 can be written as Twenty-eight quadrillion, seven hundred twenty-nine trillion, three hundred sixty-eight billion, three hundred twenty-nine million, four hundred seventy-four thousand, eight hundred eighty.

Scientific notation

• Scientific notation: 2.872936832947488 × 10¹⁶

Factors of 28729368329474880

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 8211127

Divisors of 28729368329474880

• Number of divisors d(n): 448
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 27 30 32 36 40 45 48 54 60 64 72 80 90 96 97 108 120 135 144 160 180 192 194 216 240 270 288 291 320 360 388 432 480 485 540 576 582 720 776 864 873 960 970 1080 1164 1440 1455 1552 1728 1746 1940 2160 2328 2619 2880 2910 3104 3492 3880 4177 4320 4365 4656 5238 5820 6208 6984 7760 8354 8640 8730 9312 10476 11640 12531 13095 13968 15520 16708 17460 18624 20885 20952 23280 25062 26190 27936 31040 33416 34920 37593 41770 41904 46560 50124 52380 55872 62655 66832 69840 75186 83540 83808 93120 100248 104760 112779 125310 133664 139680 150372 167080 167616 187965 200496 209520 225558 250620 267328 279360 300744 334160 375930 400992 405169 419040 451116 501240 563895 601488 668320 751860 801984 810338 838080 902232 1002480 1127790 1202976 1215507 1336640 1503720 1620676 1804464 2004960 2025845 2255580 2405952 2431014 3007440 3241352 3608928 3646521 4009920 4051690 4511160 4862028 6014880 6077535 6482704 7217856 7293042 8103380 8206843 9022320 9724056 10939563 12029760 12155070 12965408 14586084 16206760 16413686 18044640 18232605 19448112 21879126 24310140 24620529 25930816 29172168 32413520 32827372 36089280 36465210 38896224 41034215 43758252 48620280 49241058 54697815 58344336 64827040 65654744 72930420 73861587 77792448 82068430 87516504 97240560 98482116 109395630 116688672 123102645 129654080 131309488 145860840 147723174 164136860 175033008 194481120 196964232 218791260 221584761 233377344 246205290 262618976 291721680 295446348 328273720 350066016 369307935 388962240 393928464 437582520 443169522 492410580 525237952 583443360 590892696 656547440 700132032 738615870 787856928 796063771 875165040 886339044 984821160 1107923805 1166886720 1181785392 1313094880 1477231740 1575713856 1592127542 1750330080 1772678088 1969642320 2215847610 2363570784 2388191313 2626189760 2954463480 3184255084 3500660160 3545356176 3939284640 3980318855 4431695220 4727141568 4776382626 5908926960 6368510168 7090712352 7164573939 7878569280 7960637710 8863390440 9552765252 11817853920 11940956565 12737020336 14181424704 14329147878 15921275420 17726780880 19105530504 21493721817 23635707840 23881913130 25474040672 28658295756 31842550840 34279983211 35453561760 35822869695 38211061008 42987443634 47763826260 50948081344 57316591512 63685101680 68559966422 70907123520 71645739390 76422122016 85974887268 95527652520 102839949633 107468609085 114633183024 127370203360 137119932844 143291478780 152844244032 171399916055 171949774536 191055305040 205679899266 214937218170 229266366048 254740406720 274239865688 286582957560 308519848899 342799832110 343899549072 382110610080 411359798532 429874436340 458532732096 514199748165 548479731376 573165915120 617039697798 685599664220 687799098144 764221220160 822719597064 859748872680 925559546697 1028399496330 1096959462752 1146331830240 1234079395596 1371199328440 1375598196288 1542599244495 1645439194128 1719497745360 1851119093394 2056798992660 2193918925504 2292663660480 2468158791192 2742398656880 3085198488990 3290878388256 3325158371467 3438995490720 3702238186788 4113597985320 4627797733485 4936317582384 5484797313760 6170396977980 6581756776512 6650316742934 6877990981440 7404476373576 8227195970640 9255595466970 9872635164768 9975475114401 10969594627520 12340793955960 13300633485868 14808952747152 16454391941280 16625791857335 18511190933940 19745270329536 19950950228802 24681587911920 26601266971736 29617905494304 29926425343203 32908783882560 33251583714670 37022381867880 39901900457604 49363175823840 49877375572005 53202533943472 59235810988608 59852850686406 66503167429340 74044763735760 79803800915208 89779276029609 98726351647680 99754751144010 106405067886944 119705701372812 133006334858680 148089527471520 149632126716015 159607601830416 179558552059218 199509502288020 212810135773888 239411402745624 266012669717360 296179054943040 299264253432030 319215203660832 359117104118436 399019004576040 448896380148045 478822805491248 532025339434720 598528506864060 638430407321664 718234208236872 798038009152080 897792760296090 957645610982496 1064050678869440 1197057013728120 1436468416473744 1596076018304160 1795585520592180 1915291221964992 2394114027456240 2872936832947488 3192152036608320 3591171041184360 4788228054912480 5745873665894976 7182342082368720 9576456109824960 14364684164737440 28729368329474880
• Sum of all divisors σ(n): 102420207698753280
• Sum of proper divisors (its aliquot sum) s(n): 73690839369278400
• 28729368329474880 is an abundant number, because the sum of its proper divisors (73690839369278400) is greater than itself. Its abundance is 44961471039803520

Bases of 28729368329474880

• Binary: 1100110000100010011010101010001111001100101001101000000₂
• Hexadecimal: 0x66113551E65340
• Base-36: 7UVPLLX26O0

Squares and roots of 28729368329474880

• 28729368329474880 squared (28729368329474880²) is 825376604610634257105376551014400
• 28729368329474880 cubed (28729368329474880³) is 23712548484390266044683146296346557399483318272000
• The square root of 28729368329474880 is 169497399.1820372447
• The cube root of 28729368329474880 is 306272.9858125103

Scales and comparisons

• 28,729,368,329,474,880 seconds is equal to 913,505,047 years, 5 weeks, 3 days, 16 hours, 48 minutes.
• To count from 1 to 28,729,368,329,474,880 would take you about two billion, seven hundred forty million, five hundred fifteen thousand, one hundred forty-one 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 28729368329474880 cubic inches would be around 25522.7 feet tall.

Recreational maths with 28729368329474880

• 28729368329474880 backwards is 08847492386392782
• 28729368329474880 is a Harshad number.
• The number of decimal digits it has is: 17
• The sum of 28729368329474880's digits is 90
• More coming soon!