12643425731472165

Names of 12643425731472165

• Cardinal: 12643425731472165 can be written as Twelve quadrillion, six hundred forty-three trillion, four hundred twenty-five billion, seven hundred thirty-one million, four hundred seventy-two thousand, one hundred sixty-five.

Scientific notation

• Scientific notation: 1.2643425731472165 × 10¹⁶

Factors of 12643425731472165

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 401179

Divisors of 12643425731472165

• Number of divisors d(n): 288
• Complete list of divisors:
  1 3 5 7 9 15 21 31 35 45 63 93 105 151 155 217 279 315 453 465 651 691 755 961 1057 1085 1359 1395 1953 2073 2265 2883 3171 3255 3455 4681 4805 4837 5285 6219 6727 6795 8649 9513 9765 10365 14043 14415 14511 15855 20181 21421 23405 24185 31095 32767 33635 42129 43245 43533 47565 60543 64263 70215 72555 98301 100905 104341 107105 145111 149947 163835 192789 210645 217665 294903 302715 313023 321315 400291 435333 449841 491505 521705 664051 725555 730387 749735 939069 963945 1015777 1200873 1305999 1349523 1474515 1565115 1992153 2001455 2176665 2191161 2249205 2802037 3047331 3234571 3320255 3602619 3651935 4648357 4695345 5078885 5976459 6004365 6529995 6573483 6747615 8406111 9141993 9703713 9960765 10955805 12409021 13945071 14010185 15236655 16172855 18013095 22641997 23241785 25218333 29111139 29882295 32867415 37227063 41835213 42030555 45709965 48518565 60443941 62045105 67925991 69725355 86863147 100271701 111681189 113209985 126091665 145555695 181331823 186135315 203777973 209176065 260589441 276601081 300815103 302219705 339629955 384679651 423107587 434315735 501358505 543995469 558405945 701901907 781768323 829803243 902445309 906659115 1018889865 1154038953 1269322761 1302947205 1383005405 1504075515 1873762171 1923398255 1936207567 2105705721 2115537935 2489409729 2692757557 2719977345 3462116859 3509509535 3807968283 3908841615 4149016215 4512226545 5621286513 5770194765 5808622701 6317117163 6346613805 8078272671 8574633511 9368810855 9681037835 10528528605 12447048645 13116335197 13463787785 16863859539 17310584295 17425868103 19039841415 24234818013 25723900533 28106432565 29043113505 31585585815 39349005591 40391363355 41766763231 42873167555 58086627301 60022434577 65581675985 77171701599 84319297695 87129340515 118047016773 121174090065 125300289693 128619502665 174259881903 180067303731 196745027955 208833816155 265813638841 290433136505 292367342617 300112172885 375900869079 385858507995 406606391107 522779645709 540201911193 590235083865 626501448465 797440916523 871299409515 877102027851 900336518655 1219819173321 1294769660161 1329068194205 1461836713085 1860695471887 1879504345395 2033031955535 2392322749569 2613898228545 2631306083553 2701009555965 3659457519963 3884308980483 3987204582615 4385510139255 5582086415661 6099095866605 6473848300805 9063387621127 9303477359435 11652926941449 11961613747845 13156530417765 16746259246983 18297287599815 19421544902415 27190162863381 27910432078305 40137859464991 45316938105635 58264634707245 81570488590143 83731296234915 120413578394973 135950814316905 200689297324955 280965016254937 361240735184919 407852442950715 602067891974865 842895048764811 1404825081274685 1806203675924595 2528685146294433 4214475243824055 12643425731472165
• Sum of all divisors σ(n): 26089180123908096
• Sum of proper divisors (its aliquot sum) s(n): 13445754392435931
• 12643425731472165 is an abundant number, because the sum of its proper divisors (13445754392435931) is greater than itself. Its abundance is 802328660963766

Bases of 12643425731472165

• Binary: 101100111010110010000011110011011101111110101100100101₂
• Hexadecimal: 0x2CEB20F377EB25
• Base-36: 3GHPXLGXU79

Squares and roots of 12643425731472165

• 12643425731472165 squared (12643425731472165²) is 159856214227252450581778169787225
• 12643425731472165 cubed (12643425731472165³) is 2021130172296570424509070684950832649624060092125
• The square root of 12643425731472165 is 112442988.8053148693
• The cube root of 12643425731472165 is 232963.6992786635

Scales and comparisons

• 12,643,425,731,472,165 seconds is equal to 402,021,829 years, 30 weeks, 2 hours, 42 minutes, 45 seconds.
• To count from 1 to 12,643,425,731,472,165 would take you about one billion, two hundred six million, sixty-five thousand, four hundred eighty-eight 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 12643425731472165 cubic inches would be around 19413.6 feet tall.

Recreational maths with 12643425731472165

• 12643425731472165 backwards is 56127413752434621
• 12643425731472165 is a Harshad number.
• The number of decimal digits it has is: 17
• The sum of 12643425731472165's digits is 63
• More coming soon!