81559143120

Names of 81559143120

• Cardinal: 81559143120 can be written as Eighty-one billion, five hundred fifty-nine million, one hundred forty-three thousand, one hundred twenty.

Scientific notation

• Scientific notation: 8.155914312 × 10¹⁰

Factors of 81559143120

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 1212

Divisors of 81559143120

• Number of divisors d(n): 640
• Complete list of divisors:
  1 2 3 4 5 6 7 8 10 12 13 14 15 16 19 20 21 24 26 28 30 35 38 39 40 42 48 52 56 57 60 65 70 76 78 80 84 91 95 104 105 112 114 120 130 133 140 152 156 168 169 182 190 195 208 210 228 240 247 260 266 273 280 285 304 312 336 338 364 380 390 399 420 455 456 494 507 520 532 546 560 570 624 665 676 728 741 760 780 798 840 845 910 912 988 1014 1040 1064 1092 1140 1163 1183 1235 1330 1352 1365 1456 1482 1520 1560 1596 1680 1690 1729 1820 1976 1995 2028 2128 2184 2197 2280 2326 2366 2470 2535 2660 2704 2730 2964 3120 3192 3211 3380 3458 3489 3549 3640 3705 3952 3990 4056 4368 4394 4560 4652 4732 4940 5070 5187 5320 5460 5815 5915 5928 6384 6422 6591 6760 6916 6978 7098 7280 7410 7980 8112 8141 8645 8788 9304 9464 9633 9880 10140 10374 10640 10920 10985 11630 11830 11856 12844 13182 13520 13832 13956 14196 14820 15119 15379 15960 16055 16282 17290 17445 17576 17745 18608 18928 19266 19760 20280 20748 21840 21970 22097 22477 23260 23660 24423 25688 25935 26364 27664 27912 28392 29640 30238 30758 31920 32110 32564 32955 34580 34890 35152 35490 38532 40560 40705 41496 41743 43940 44194 44954 45357 46137 46520 47320 48165 48846 51376 51870 52728 55824 56784 59280 60476 61516 64220 65128 65910 66291 67431 69160 69780 70980 75595 76895 77064 81410 82992 83486 87880 88388 89908 90714 92274 93040 94640 96330 97692 103740 105456 105833 110485 112385 120952 122115 123032 125229 128440 130256 131820 132582 134862 138320 139560 141960 151190 153790 154128 154679 162820 166972 175760 176776 179816 181428 184548 192660 195384 196547 207480 208715 211666 220970 224770 226785 230685 241904 244230 246064 250458 256880 263640 265164 269724 279120 283920 287261 292201 302380 307580 309358 317499 325640 331455 333944 337155 353552 359632 362856 369096 385320 390768 393094 414960 417430 423332 441940 449540 453570 461370 464037 488460 500916 527280 529165 530328 539448 574522 584402 589641 604760 615160 618716 626145 634998 651280 662910 667888 674310 725712 738192 770640 773395 786188 834860 846664 861783 876603 883880 899080 907140 922740 928074 976920 982735 1001832 1058330 1060656 1078896 1149044 1168804 1179282 1209520 1230320 1237432 1252290 1269996 1325820 1348620 1375829 1436305 1461005 1546790 1572376 1587495 1669720 1693328 1723566 1753206 1767760 1798160 1814280 1845480 1856148 1953840 1965470 2003664 2010827 2116660 2298088 2320185 2337608 2358564 2474864 2504580 2539992 2555111 2651640 2697240 2751658 2872610 2922010 2948205 3093580 3144752 3174990 3339440 3447132 3506412 3628560 3690960 3712296 3734393 3930940 4021654 4127487 4233320 4308915 4383015 4596176 4640370 4675216 4717128 5009160 5079984 5110222 5303280 5394480 5503316 5745220 5844020 5896410 6032481 6187160 6349980 6879145 6894264 7012824 7424592 7468786 7665333 7861880 8043308 8254974 8466640 8617830 8766030 9280740 9434256 10018320 10054135 10220444 11006632 11203179 11490440 11688040 11792820 12064962 12374320 12699960 12775555 13758290 13788528 14025648 14937572 15330666 15723760 16086616 16509948 17235660 17532060 17885777 18561480 18671965 20108270 20440888 20637435 22013264 22406358 22980880 23376080 23585640 24129924 25399920 25551110 26140751 27516580 29875144 30162405 30661332 32173232 33019896 34471320 35064120 35771554 37122960 37343930 38326665 40216540 40881776 41274870 44812716 47171280 48259848 48547109 51102220 52281502 53657331 55033160 56015895 59750288 60324810 61322664 66039792 68942640 70128240 71543108 74687860 76653330 78422253 80433080 82549740 89428885 89625432 96519696 97094218 102204440 104563004 107314662 110066320 112031790 120649620 122645328 130703755 143086216 145641327 149375720 153306660 156844506 160866160 165099480 178857770 179250864 194188436 204408880 209126008 214629324 224063580 241299240 242735545 261407510 268286655 286172432 291282654 298751440 306613320 313689012 330198960 339829763 357715540 388376872 392111265 418252016 429258648 448127160 482598480 485471090 522815020 536573310 582565308 613226640 627378024 679659526 715431080 728206635 776753744 784222530 858517296 896254320 970942180 1019489289 1045630040 1073146620 1165130616 1254756048 1359319052 1430862160 1456413270 1568445060 1699148815 1941884360 2038978578 2091260080 2146293240 2330261232 2718638104 2912826540 3136890120 3398297630 3883768720 4077957156 4292586480 5097446445 5437276208 5825653080 6273780240 6796595260 8155914312 10194892890 11651306160 13593190520 16311828624 20389785780 27186381040 40779571560 81559143120
• Sum of all divisors σ(n): 329778892800
• Sum of proper divisors (its aliquot sum) s(n): 248219749680
• 81559143120 is an abundant number, because the sum of its proper divisors (248219749680) is greater than itself. Its abundance is 166660606560

Bases of 81559143120

• Binary: 1001011111101010011011100001011010000₂
• Hexadecimal: 0x12FD4DC2D0
• Base-36: 11GU7HLC

Squares and roots of 81559143120

• 81559143120 squared (81559143120²) is 6651893826468643334400
• 81559143120 cubed (81559143120³) is 542522760612000525902563619328000
• The square root of 81559143120 is 285585.6143435799
• The cube root of 81559143120 is 4336.6817408765

Scales and comparisons

• 81,559,143,120 seconds is equal to 2,593 years, 17 weeks, 13 hours, 32 minutes.
• To count from 1 to 81,559,143,120 would take you about five thousand, one hundred eighty-six 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 81559143120 cubic inches would be around 361.4 feet tall.

Recreational maths with 81559143120

• 81559143120 backwards is 02134195518
• 81559143120 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 81559143120's digits is 39
• More coming soon!