81067002799720

Names of 81067002799720

• Cardinal: 81067002799720 can be written as Eighty-one trillion, sixty-seven billion, two million, seven hundred ninety-nine thousand, seven hundred twenty.

Scientific notation

• Scientific notation: 8.106700279972 × 10¹³

Factors of 81067002799720

• Number of distinct prime factors ω(n): 8
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 5001

Divisors of 81067002799720

• Number of divisors d(n): 512
• Complete list of divisors:
  1 2 4 5 7 8 10 14 19 20 23 28 35 38 40 46 56 70 76 92 95 115 133 139 140 152 161 184 190 230 266 278 280 322 380 437 460 532 556 644 665 695 760 805 874 920 973 1064 1112 1288 1330 1390 1399 1610 1748 1946 2185 2641 2660 2780 2798 3059 3197 3220 3407 3496 3892 4370 4865 5282 5320 5560 5596 6118 6394 6440 6814 6995 7784 8740 9730 9793 10564 11192 12236 12788 13205 13628 13990 15295 15985 17035 17480 18487 19460 19586 21128 22379 23849 24472 25576 26410 26581 27256 27980 30590 31970 32177 34070 36974 38920 39172 44758 47698 48965 52820 53162 55960 60743 61180 63940 64354 64733 68140 73948 78344 78361 89516 92435 95396 97930 105640 106324 111895 119245 121486 122360 127880 128708 129466 132905 136280 147896 156722 160885 179032 184870 186067 190792 194461 195860 212648 223790 225239 238490 242972 257416 258932 265810 303715 313444 321770 323665 369740 372134 388922 391720 391805 425201 447580 450478 453131 473573 476980 485944 517864 531620 548527 607430 611363 626888 643540 647330 739480 744268 777844 783610 850402 895160 900956 906262 930335 947146 953960 972305 1063240 1097054 1126195 1214860 1222726 1287080 1294660 1361227 1488536 1488859 1555688 1567220 1700804 1801912 1812524 1860670 1894292 1944610 2126005 2194108 2252390 2265655 2367865 2429720 2445452 2589320 2722454 2742635 2977718 3056815 3134440 3315011 3401608 3625048 3694759 3721340 3788584 3889220 4252010 4279541 4388216 4472603 4504780 4531310 4735730 4766393 4890904 5444908 5485270 5955436 6113630 6630022 6806135 7389518 7442680 7444295 7778440 8504020 8559082 8945206 8997887 9009560 9062620 9471460 9532786 10422013 10889816 10892179 10970540 11910872 12227260 13260044 13612270 14779036 14888590 16575055 17008040 17118164 17890412 17995774 18125240 18473795 18942920 19065572 20844026 21397705 21784358 21941080 22363015 23831965 24454520 25863313 26520088 27224540 29558072 29777180 31308221 33150110 33364751 34236328 35780824 35991548 36947590 38131144 41688052 42795410 43568716 44726030 44989435 47663930 51726626 52110065 54449080 54460895 59554360 62616442 62985209 66300220 66729502 71983096 73895180 76245253 83376104 84979457 85590820 87137432 89452060 89978870 90561467 95327860 103453252 104220130 108921790 109627039 125232884 125970418 129316565 132600440 133459004 147790360 152490506 156541105 166823755 169958914 171181640 178904120 179957740 181122934 190655720 206906504 206951401 208440260 217843580 219254078 250465768 251940836 258633130 266918008 304981012 313082210 314926045 333647510 339917828 359915480 362245868 381226265 413902802 416880520 424897285 435687160 438508156 452807335 503881672 517266260 548135195 594856199 609962024 626164420 629852090 633930269 662528627 667295020 679835656 724491736 762452530 767389273 827805604 849794570 877016312 905614670 1034532520 1034757005 1096270390 1189712398 1252328840 1259704180 1267860538 1325057254 1334590040 1448659807 1524905060 1534778546 1655611208 1699589140 1811229340 2069514010 2082913741 2192540780 2379424796 2519408360 2535721076 2650114508 2897319614 2974280995 3049810120 3069557092 3169651345 3312643135 3399178280 3622458680 3836946365 4139028020 4165827482 4385081560 4637700389 4758849592 5071442152 5300229016 5794639228 5948561990 6139114184 6339302690 6625286270 7243299035 7673892730 8278056040 8331654964 9275400778 10414568705 11589278456 11897123980 12588043913 12678605380 13250572540 14486598070 14580396187 15238158421 15347785460 16663309928 18550801556 20829137410 23188501945 23794247960 25176087826 25357210760 26501145080 28973196140 29160792374 30476316842 30695570920 37101603112 41658274820 46377003890 50352175652 57946392280 58321584748 60952633684 62940219565 72901980935 76190792105 83316549640 88116307391 92754007780 100704351304 106667108947 116643169496 121905267368 125880439130 145803961870 152381584210 176232614782 185508015560 213334217894 251760878260 289525009999 291607923740 304763168420 352465229564 426668435788 440581536955 503521756520 533335544735 579050019998 583215847480 609526336840 704930459128 853336871576 881163073910 1066671089470 1158100039996 1447625049995 1762326147820 2026675069993 2133342178940 2316200079992 2895250099990 3524652295640 4053350139986 4266684357880 5790500199980 8106700279972 10133375349965 11581000399960 16213400559944 20266750699930 40533501399860 81067002799720
• Sum of all divisors σ(n): 230849740800000
• Sum of proper divisors (its aliquot sum) s(n): 149782738000280
• 81067002799720 is an abundant number, because the sum of its proper divisors (149782738000280) is greater than itself. Its abundance is 68715735200560

Bases of 81067002799720

• Binary: 10010011011101011100001111001111010011001101000₂
• Hexadecimal: 0x49BAE1E7A668
• Base-36: SQHO0DN54

Squares and roots of 81067002799720

• 81067002799720 squared (81067002799720²) is 6571858942929810318432078400
• 81067002799720 cubed (81067002799720³) is 532760907325855852783781844373458538048000
• The square root of 81067002799720 is 9003721.6082973157
• The cube root of 81067002799720 is 43279.4140383677

Scales and comparisons

• 81,067,002,799,720 seconds is equal to 2,577,679 years, 48 weeks, 3 days, 8 hours, 48 minutes, 40 seconds.
• To count from 1 to 81,067,002,799,720 would take you about six million, four hundred forty-four thousand, one hundred ninety-nine 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 81067002799720 cubic inches would be around 3606.6 feet tall.

Recreational maths with 81067002799720

• 81067002799720 backwards is 02799720076018
• The number of decimal digits it has is: 14
• The sum of 81067002799720's digits is 58
• More coming soon!