18400828440642921

Names of 18400828440642921

• Cardinal: 18400828440642921 can be written as Eighteen quadrillion, four hundred trillion, eight hundred twenty-eight billion, four hundred forty million, six hundred forty-two thousand, nine hundred twenty-one.

Scientific notation

• Scientific notation: 1.8400828440642921 × 10¹⁶

Factors of 18400828440642921

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 763

Divisors of 18400828440642921

• Number of divisors d(n): 432
• Complete list of divisors:
  1 3 7 9 13 21 39 49 63 91 117 147 169 273 331 343 409 441 507 637 819 993 1029 1183 1227 1521 1911 2197 2317 2401 2863 2979 3087 3549 3681 4303 4459 5317 5733 6591 6951 7203 8281 8589 10647 12909 13377 15379 15951 16219 16807 19773 20041 20853 21609 24843 25767 30121 31213 37219 38727 40131 46137 47853 48657 50421 55939 57967 60123 69121 74529 90363 93639 107653 111657 113533 135379 138411 140287 145971 151263 167281 167817 173901 180369 207363 210847 218491 260533 271089 280917 322959 334971 340599 391573 405769 406137 420861 483847 501843 503451 521703 622089 632541 655473 727207 753571 781599 794731 898573 947653 968877 982009 1021797 1170967 1174719 1217307 1218411 1262583 1451541 1475929 1505529 1759927 1823731 1897623 1966419 2174653 2181621 2260713 2344797 2384193 2695719 2741011 2840383 2842959 2946027 3386929 3512901 3524157 3651921 4354623 4427787 5090449 5274997 5279781 5471193 5563117 6290011 6523959 6544863 6633571 6782139 6874063 7152579 8087157 8196769 8223033 8521149 8528877 8838081 10160787 10331503 10538703 12319489 12766117 13283361 15222571 15271347 15824991 15839343 16413579 16689351 18870033 19187077 19571877 19900713 20622189 22879051 23708503 24590307 24669099 25563447 28270489 30482361 30994509 35633143 36924979 36958467 38298351 44030077 45667713 45814041 46434997 47474973 50068053 55370011 56610099 57377383 57561231 59702139 61866567 68637153 71125509 72320521 73770921 84811467 86236423 89362819 92983527 106557997 106899429 110774937 110875401 114895053 132090231 134309539 137003139 139304991 160153357 165959521 166110033 172132149 172683693 197893423 205911459 213376527 216961563 249432001 254434401 258709269 268088457 297427663 308210539 319673991 320698287 325044979 332324811 367516357 387590077 396270693 401641681 402928617 417914973 480460071 497878563 498330099 516396447 593680269 603654961 650884689 719810143 745905979 748296003 776127807 804265371 892282989 924631617 940166773 959021973 975134937 1102549071 1121073499 1161716647 1162770231 1204925043 1208785851 1385253961 1441380213 1493635689 1746024007 1781040807 1810964883 2081993641 2157473773 2159430429 2237717937 2244888009 2275314853 2572614499 2676848967 2713130539 2773894851 2811491767 2820500319 2925404811 3307647213 3363220497 3485149941 3488310693 3614775129 4155761883 4225584727 5038671001 5221341853 5238072021 5432894649 6245980923 6472421319 6478291287 6713153811 6825944559 7717843497 7847514493 8139391617 8434475301 8461500957 9357531859 9696777727 10089661491 10455449823 12222168049 12467285649 12676754181 14573955487 15102316411 15116013003 15664025559 15714216063 18008301493 18737942769 18991913773 19417263957 20477833677 23153530491 23542543479 24418174851 25303425903 28072595577 29090333181 29579093089 35270697007 36549392971 36666504147 38030262543 43721866461 45306949233 45348039009 46992076677 54024904479 54932601451 56975741319 65502723013 67877444089 70627630437 84217786731 87270999543 88737279267 102017688409 105812091021 109648178913 109999512441 121647914167 126058110451 131165599383 132943396411 135920847699 162074713437 164797804353 170927223957 196508169039 203632332267 246894879049 266211837801 306053065227 317436273063 328944536739 364943742501 378174331353 384528210157 398830189233 458519061091 475142108623 494393413059 589524507117 610896996801 714123818863 740684637147 851535399169 882406773157 918159195681 930603774877 1094831227503 1134522994059 1153584630471 1196490567699 1375557183273 1425426325869 1728264153343 2142371456589 2222053911441 2554606197507 2647220319471 2791811324631 3209633427637 3460753891413 4126671549819 4276278977607 4998866732041 5184792460029 5960747794183 6176847412099 6427114369767 7663818592521 7941660958413 8375433973893 9628900282911 12097849073401 14996600196123 15554377380087 17882243382549 18530542236297 22467433993459 28886700848733 36293547220203 41725234559281 44989800588369 53646730147647 55591626708891 67402301980377 108880641660609 125175703677843 157272037954213 202206905941131 292076641914967 375527111033529 471816113862639 876229925744901 1415448341587917 2044536493404769 2628689777234703 6133609480214307 18400828440642921
• Sum of all divisors σ(n): 33775473481626240
• Sum of proper divisors (its aliquot sum) s(n): 15374645040983319
• 18400828440642921 is a deficient number, because the sum of its proper divisors (15374645040983319) is less than itself. Its deficiency is 3026183399659602

Bases of 18400828440642921

• Binary: 1000001010111110111010010111010110001110000010101101001₂
• Hexadecimal: 0x415F74BAC70569
• Base-36: 516JRVY8WO9

Squares and roots of 18400828440642921

• 18400828440642921 squared (18400828440642921²) is 338590487301973391643359827412241
• 18400828440642921 cubed (18400828440642921³) is 6230345468477297787761065884329396340533745395961
• The square root of 18400828440642921 is 135649653.3008577983
• The cube root of 18400828440642921 is 264005.1864255181

Scales and comparisons

• 18,400,828,440,642,921 seconds is equal to 585,089,426 years, 47 weeks, 3 days, 7 hours, 55 minutes, 21 seconds.
• To count from 1 to 18,400,828,440,642,921 would take you about one billion, seven hundred fifty-five million, two hundred sixty-eight thousand, two hundred eighty 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 18400828440642921 cubic inches would be around 22000.4 feet tall.

Recreational maths with 18400828440642921

• 18400828440642921 backwards is 12924604482800481
• 18400828440642921 is a Harshad number.
• The number of decimal digits it has is: 17
• The sum of 18400828440642921's digits is 63
• More coming soon!