81609759641200

Names of 81609759641200

• Cardinal: 81609759641200 can be written as Eighty-one trillion, six hundred nine billion, seven hundred fifty-nine million, six hundred forty-one thousand, two hundred.

Scientific notation

• Scientific notation: 8.16097596412 × 10¹³

Factors of 81609759641200

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 15
• Sum of prime factors: 43

Divisors of 81609759641200

• Number of divisors d(n): 420
• Complete list of divisors:
  1 2 4 5 7 8 10 14 16 20 25 28 29 35 40 49 50 56 58 70 80 98 100 112 116 140 145 175 196 200 203 232 245 280 290 343 350 392 400 406 464 490 560 580 686 700 725 784 812 841 980 1015 1160 1225 1372 1400 1421 1450 1624 1682 1715 1960 2030 2320 2450 2744 2800 2842 2900 3248 3364 3430 3920 4060 4205 4900 5075 5488 5684 5800 5887 6728 6860 7105 8120 8410 8575 9800 9947 10150 11368 11600 11774 13456 13720 14210 16240 16820 17150 19600 19894 20300 21025 22736 23548 24389 27440 28420 29435 33640 34300 35525 39788 40600 41209 42050 47096 48778 49735 56840 58870 67280 68600 71050 79576 81200 82418 84100 94192 97556 99470 113680 117740 121945 137200 142100 147175 159152 164836 168200 170723 195112 198940 206045 235480 243890 248675 284200 288463 294350 329672 336400 341446 390224 397880 412090 470960 487780 497350 568400 576926 588700 609725 659344 682892 707281 795760 824180 853615 975560 994700 1030225 1153852 1177400 1195061 1219450 1365784 1414562 1442315 1648360 1707230 1951120 1989400 2060450 2307704 2354800 2390122 2438900 2731568 2829124 2884630 3296720 3414460 3536405 3978800 4120900 4268075 4615408 4780244 4877800 4950967 5658248 5769260 5975305 6828920 7072810 7211575 8241800 8365427 8536150 9560488 9755600 9901934 11316496 11538520 11950610 13657840 14145620 14423150 16483600 16730854 17072300 17682025 19120976 19803868 20511149 23077040 23901220 24754835 28291240 28846300 29876525 33461708 34144600 34656769 35364050 39607736 41022298 41827135 47802440 49509670 56582480 57692600 59753050 66923416 68289200 69313538 70728100 79215472 82044596 83654270 95604880 99019340 102555745 115385200 119506100 123774175 133846832 138627076 141456200 143578043 164089192 167308540 173283845 198038680 205111490 209135675 239012200 242597383 247548350 277254152 282912400 287156086 328178384 334617080 346567690 396077360 410222980 418271350 478024400 485194766 495096700 512778725 554508304 574312172 594823321 669234160 693135380 717890215 820445960 836542700 866419225 970389532 990193400 1005046301 1025557450 1148624344 1189646642 1212986915 1386270760 1435780430 1640891920 1673085400 1732838450 1940779064 1980386800 2010092602 2051114900 2297248688 2379293284 2425973830 2772541520 2871560860 2974116605 3346170800 3465676900 3589451075 3881558128 4020185204 4102229800 4163763247 4758586568 4851947660 5025231505 5743121720 5948233210 6064934575 6931353800 7035324107 7178902150 8040370408 8204459600 8327526494 9517173136 9703895320 10050463010 11486243440 11896466420 12129869150 13862707600 14070648214 14357804300 14870583025 16080740816 16655052988 19407790640 20100926020 20818816235 23792932840 24259738300 25126157525 28141296428 28715608600 29146342729 29741166050 33310105976 35176620535 40201852040 41637632470 47585865680 48519476600 50252315050 56282592856 57431217200 58292685458 59482332100 66620211952 70353241070 80403704080 83275264940 97038953200 100504630100 104094081175 112565185712 116585370916 118964664200 140706482140 145731713645 166550529880 175883102675 201009260200 204024399103 208188162350 233170741832 237929328400 281412964280 291463427290 333101059760 351766205350 402018520400 408048798206 416376324700 466341483664 562825928560 582926854580 703532410700 728658568225 816097596412 832752649400 1020121995515 1165853709160 1407064821400 1457317136450 1632195192824 1665505298800 2040243991030 2331707418320 2814129642800 2914634272900 3264390385648 4080487982060 5100609977575 5829268545800 8160975964120 10201219955150 11658537091600 16321951928240 20402439910300 40804879820600 81609759641200
• Sum of all divisors σ(n): 236816159028400
• Sum of proper divisors (its aliquot sum) s(n): 155206399387200
• 81609759641200 is an abundant number, because the sum of its proper divisors (155206399387200) is greater than itself. Its abundance is 73596639746000

Bases of 81609759641200

• Binary: 10010100011100101000000101110111100111001110000₂
• Hexadecimal: 0x4A3940BBCE70
• Base-36: SXF07SEB4

Squares and roots of 81609759641200

• 81609759641200 squared (81609759641200²) is 6660152868694436352737440000
• 81609759641200 cubed (81609759641200³) is 543533474787801614794614058052206528000000
• The square root of 81609759641200 is 9033812.0215776019
• The cube root of 81609759641200 is 43375.7868649919
• Being both a perfect square and a perfect cube, 81609759641200 is also a perfect sixth number.

Scales and comparisons

• 81,609,759,641,200 seconds is equal to 2,594,937 years, 47 weeks, 6 days, 6 hours, 6 minutes, 40 seconds.
• To count from 1 to 81,609,759,641,200 would take you about six million, four hundred eighty-seven thousand, three hundred forty-four 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 81609759641200 cubic inches would be around 3614.6 feet tall.

Recreational maths with 81609759641200

• 81609759641200 backwards is 00214695790618
• 81609759641200 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 81609759641200's digits is 58
• More coming soon!