81743997312

Names of 81743997312

• Cardinal: 81743997312 can be written as Eighty-one billion, seven hundred forty-three million, nine hundred ninety-seven thousand, three hundred twelve.

Scientific notation

• Scientific notation: 8.1743997312 × 10¹⁰

Factors of 81743997312

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 15
• Sum of prime factors: 443

Divisors of 81743997312

• Number of divisors d(n): 640
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 18 19 24 27 29 32 36 38 41 48 54 57 58 64 72 76 81 82 87 96 108 114 116 123 128 144 152 162 164 171 174 192 216 228 232 246 261 288 304 324 328 342 348 349 369 384 432 456 464 492 513 522 551 576 608 648 656 684 696 698 738 779 783 864 912 928 984 1026 1044 1047 1102 1107 1152 1189 1216 1296 1312 1368 1392 1396 1476 1539 1558 1566 1653 1728 1824 1856 1968 2052 2088 2094 2204 2214 2337 2349 2378 2432 2592 2624 2736 2784 2792 2952 3078 3116 3132 3141 3306 3321 3456 3567 3648 3712 3936 4104 4176 4188 4408 4428 4674 4698 4756 4959 5184 5248 5472 5568 5584 5904 6156 6232 6264 6282 6612 6631 6642 7011 7134 7296 7872 8208 8352 8376 8816 8856 9348 9396 9423 9512 9918 10121 10368 10701 10944 11136 11168 11808 12312 12464 12528 12564 13224 13262 13284 14022 14268 14309 14877 15744 16416 16704 16752 17632 17712 18696 18792 18846 19024 19836 19893 20242 21033 21402 21888 22336 22591 23616 24624 24928 25056 25128 26448 26524 26568 28044 28269 28536 28618 29754 30363 32103 32832 33408 33504 35264 35424 37392 37584 37692 38048 39672 39786 40484 42066 42804 42927 44631 44672 45182 47232 49248 49856 50112 50256 52896 53048 53136 56088 56538 57072 57236 59508 59679 60726 63099 64206 65664 67008 67773 70528 70848 74784 75168 75384 76096 79344 79572 80968 84132 85608 85854 89262 90364 91089 96309 98496 99712 100224 100512 105792 106096 106272 112176 113076 114144 114472 119016 119358 121452 126198 128412 128781 134016 135546 141696 149568 150336 150768 152192 158688 159144 161936 168264 171216 171708 178524 179037 180728 182178 192299 192618 196992 201024 203319 211584 212192 212544 224352 226152 228288 228944 238032 238716 242904 252396 256824 257562 271092 271871 273267 299136 300672 301536 317376 318288 323872 336528 342432 343416 357048 358074 361456 364356 384598 385236 386343 402048 406638 414961 424384 425088 448704 452304 456576 457888 476064 477432 485808 504792 513648 515124 537111 542184 543742 546534 576897 603072 609957 634752 636576 647744 673056 684864 686832 714096 716148 722912 728712 769196 770472 772686 813276 815613 819801 829922 848768 897408 904608 915776 952128 954864 971616 1009584 1027296 1030248 1074222 1084368 1087484 1093068 1153794 1159029 1206144 1219914 1244883 1273152 1295488 1346112 1369728 1373664 1428192 1432296 1445824 1457424 1538392 1540944 1545372 1626552 1631226 1639602 1659844 1730691 1809216 1829871 1831552 1904256 1909728 1943232 2019168 2054592 2060496 2148444 2168736 2174968 2186136 2307588 2318058 2439828 2446839 2489766 2546304 2692224 2747328 2856384 2864592 2891648 2914848 3076784 3081888 3090744 3253104 3262452 3279204 3319688 3461382 3618432 3659742 3734649 3819456 3886464 4038336 4109184 4120992 4296888 4337472 4349936 4372272 4615176 4636116 4879656 4893678 4979532 5192073 5494656 5712768 5729184 5829696 6153568 6163776 6181488 6506208 6524904 6558408 6639376 6922764 7319484 7340517 7469298 7638912 7884259 8076672 8241984 8593776 8674944 8699872 8744544 9230352 9272232 9759312 9787356 9959064 10384146 11203947 11458368 11659392 12307136 12327552 12362976 13012416 13049808 13116816 13278752 13845528 14638968 14681034 14938596 15576219 15768518 16483968 17187552 17399744 17489088 18460704 18544464 19518624 19574712 19918128 20768292 22021551 22407894 22916736 23652777 24614272 24725952 26024832 26099616 26233632 26557504 27691056 29277936 29362068 29877192 31152438 31537036 33611841 34375104 34799488 34978176 36921408 37088928 39037248 39149424 39836256 41536584 44043102 44815788 47305554 49451904 52199232 52467264 53115008 55382112 58555872 58724136 59754384 62304876 63074072 67223682 68750208 70958331 73842816 74177856 78074496 78298848 79672512 83073168 88086204 89631576 94611108 104398464 104934528 110764224 117111744 117448272 119508768 124609752 126148144 134447364 141916662 148355712 156597696 159345024 166146336 176172408 179263152 189222216 212874993 221528448 234223488 234896544 239017536 249219504 252296288 268894728 283833324 313195392 332292672 352344816 358526304 378444432 425749986 469793088 478035072 498439008 504592576 537789456 567666648 638624979 664585344 704689632 717052608 756888864 851499972 939586176 996878016 1009185152 1075578912 1135333296 1277249958 1409379264 1434105216 1513777728 1702999944 1993756032 2151157824 2270666592 2554499916 2818758528 3027555456 3405999888 4302315648 4541333184 5108999832 6811999776 9082666368 10217999664 13623999552 20435999328 27247999104 40871998656 81743997312
• Sum of all divisors σ(n): 272141100000
• Sum of proper divisors (its aliquot sum) s(n): 190397102688
• 81743997312 is an abundant number, because the sum of its proper divisors (190397102688) is greater than itself. Its abundance is 108653105376

Bases of 81743997312

• Binary: 1001100001000010100100110100110000000₂
• Hexadecimal: 0x1308526980
• Base-36: 11JW9K00

Squares and roots of 81743997312

• 81743997312 squared (81743997312²) is 6682081096544263225344
• 81743997312 cubed (81743997312³) is 546220019194480265581540386275328
• The square root of 81743997312 is 285909.0717553397
• The cube root of 81743997312 is 4339.9556387263

Scales and comparisons

• 81,743,997,312 seconds is equal to 2,599 years, 10 weeks, 5 days, 1 hour, 55 minutes, 12 seconds.
• To count from 1 to 81,743,997,312 would take you about five thousand, one hundred ninety-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 81743997312 cubic inches would be around 361.7 feet tall.

Recreational maths with 81743997312

• 81743997312 backwards is 21379934718
• 81743997312 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 81743997312's digits is 54
• More coming soon!