81368345477120

Names of 81368345477120

• Cardinal: 81368345477120 can be written as Eighty-one trillion, three hundred sixty-eight billion, three hundred forty-five million, four hundred seventy-seven thousand, one hundred twenty.

Scientific notation

• Scientific notation: 8.136834547712 × 10¹³

Factors of 81368345477120

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 23
• Sum of prime factors: 1387

Divisors of 81368345477120

• Number of divisors d(n): 608
• Complete list of divisors:
  1 2 4 5 8 10 13 16 17 20 26 32 34 40 52 64 65 68 80 85 104 128 130 136 160 170 208 221 256 257 260 272 320 340 416 442 512 514 520 544 640 680 832 884 1024 1028 1040 1088 1093 1105 1280 1285 1360 1664 1768 2048 2056 2080 2176 2186 2210 2560 2570 2720 3328 3341 3536 4096 4112 4160 4352 4369 4372 4420 5120 5140 5440 5465 6656 6682 7072 8192 8224 8320 8704 8738 8744 8840 10240 10280 10880 10930 13312 13364 14144 14209 16384 16448 16640 16705 17408 17476 17488 17680 18581 20480 20560 21760 21845 21860 26624 26728 28288 28418 32768 32896 33280 33410 34816 34952 34976 35360 37162 40960 41120 43520 43690 43720 53248 53456 56576 56797 56836 65536 65792 66560 66820 69632 69904 69952 70720 71045 74324 81920 82240 87040 87380 87440 92905 106496 106912 113152 113594 113672 131072 131584 133120 133640 139264 139808 139904 141440 142090 148648 163840 164480 174080 174760 174880 185810 212992 213824 226304 227188 227344 241553 262144 263168 266240 267280 278528 279616 279808 280901 282880 283985 284180 297296 327680 328960 348160 349520 349760 371620 425984 427648 452608 454376 454688 483106 526336 532480 534560 557056 559232 559616 561802 565760 567970 568360 594592 655360 657920 696320 699040 699520 743240 851968 855296 905216 908752 909376 966212 1052672 1064960 1069120 1114112 1118464 1119232 1123604 1131520 1135940 1136720 1189184 1207765 1310720 1315840 1392640 1398080 1399040 1404505 1486480 1703936 1710592 1810432 1817504 1818752 1932424 2105344 2129920 2138240 2228224 2236928 2238464 2247208 2263040 2271880 2273440 2378368 2415530 2631680 2785280 2796160 2798080 2809010 2972960 3407872 3421184 3620864 3635008 3637504 3651713 3864848 4210688 4259840 4276480 4456448 4473856 4476928 4494416 4526080 4543760 4546880 4756736 4775317 4831060 5263360 5570560 5592320 5596160 5618020 5945920 6842368 7241728 7270016 7275008 7303426 7729696 8421376 8519680 8552960 8947712 8953856 8988832 9052160 9087520 9093760 9513472 9550634 9662120 10526720 11141120 11184640 11192320 11236040 11891840 13684736 14483456 14540032 14550016 14606852 15459392 16842752 17039360 17105920 17895424 17907712 17977664 18104320 18175040 18187520 18258565 19026944 19101268 19324240 21053440 22282240 22369280 22384640 22472080 23783680 23876585 27369472 28966912 29080064 29100032 29213704 30918784 33685504 34211840 35790848 35815424 35955328 36208640 36350080 36375040 36517130 38053888 38202536 38648480 42106880 44738560 44769280 44944160 47567360 47753170 54738944 57933824 58160128 58200064 58427408 61837568 62079121 67371008 68423680 71581696 71630848 71910656 72417280 72700160 72750080 73034260 76107776 76405072 77296960 84213760 89477120 89538560 89888320 95134720 95506340 109477888 116320256 116400128 116854816 123675136 124158242 136847360 143163392 143261696 143821312 144834560 145400320 145500160 146068520 152215552 152810144 154593920 168427520 178954240 179077120 179776640 190269440 191012680 218955776 232640512 232800256 233709632 247350272 248316484 273694720 286326784 286523392 287642624 289669120 290800640 291000320 292137040 304431104 305620288 309187840 310395605 336855040 357908480 358154240 359553280 380538880 382025360 437911552 465281024 465600512 467419264 494700544 496632968 547389440 572653568 575285248 581601280 582000640 584274080 608862208 611240576 618375680 620791210 715816960 716308480 719106560 761077760 764050720 875823104 930562048 931201024 934838528 989401088 993265936 1094778880 1145307136 1150570496 1163202560 1164001280 1168548160 1217724416 1222481152 1236751360 1241582420 1431633920 1432616960 1438213120 1522155520 1528101440 1861124096 1862402048 1869677056 1978802176 1986531872 2189557760 2301140992 2326405120 2328002560 2337096320 2435448832 2444962304 2473502720 2483164840 2863267840 2876426240 3044311040 3056202880 3722248192 3724804096 3739354112 3957604352 3973063744 4379115520 4602281984 4652810240 4656005120 4674192640 4870897664 4889924608 4947005440 4966329680 5726535680 5752852480 6088622080 6112405760 7444496384 7478708224 7915208704 7946127488 9204563968 9305620480 9312010240 9348385280 9779849216 9894010880 9932659360 11505704960 12177244160 12224811520 14888992768 14957416448 15830417408 15892254976 18409127936 18611240960 18624020480 18696770560 19559698432 19788021760 19865318720 23011409920 24354488320 24449623040 29914832896 31660834816 31784509952 36818255872 37222481920 37393541120 39119396864 39576043520 39730637440 46022819840 48899246080 59829665792 63321669632 63569019904 73636511744 74444963840 74787082240 78238793728 79152087040 79461274880 92045639680 97798492160 119659331584 127138039808 149574164480 156477587456 158304174080 158922549760 184091279360 195596984320 239318663168 254276079616 299148328960 312955174912 316608348160 317845099520 368182558720 391193968640 478637326336 508552159232 598296657920 625910349824 635690199040 782387937280 957274652672 1017104318464 1196593315840 1251820699648 1271380398080 1564775874560 2034208636928 2393186631680 2542760796160 3129551749120 4068417273856 4786373263360 5085521592320 6259103498240 8136834547712 10171043184640 16273669095424 20342086369280 40684172738560 81368345477120
• Sum of all divisors σ(n): 223747354137888
• Sum of proper divisors (its aliquot sum) s(n): 142379008660768
• 81368345477120 is an abundant number, because the sum of its proper divisors (142379008660768) is greater than itself. Its abundance is 61010663183648

Bases of 81368345477120

• Binary: 10010100000000100001011010101000000000000000000₂
• Hexadecimal: 0x4A010B540000
• Base-36: SUC3O114W

Squares and roots of 81368345477120

• 81368345477120 squared (81368345477120²) is 6620807645683954760443494400
• 81368345477120 cubed (81368345477120³) is 538724163851569535820887100647568048128000
• The square root of 81368345477120 is 9020440.4258949573
• The cube root of 81368345477120 is 43332.9738818457

Scales and comparisons

• 81,368,345,477,120 seconds is equal to 2,587,261 years, 36 weeks, 1 day, 20 hours, 5 minutes, 20 seconds.
• To count from 1 to 81,368,345,477,120 would take you about six million, four hundred sixty-eight thousand, one hundred fifty-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 81368345477120 cubic inches would be around 3611.1 feet tall.

Recreational maths with 81368345477120

• 81368345477120 backwards is 02177454386318
• The number of decimal digits it has is: 14
• The sum of 81368345477120's digits is 59
• More coming soon!