81001363200

Names of 81001363200

• Cardinal: 81001363200 can be written as Eighty-one billion, one million, three hundred sixty-three thousand, two hundred.

Scientific notation

• Scientific notation: 8.10013632 × 10¹⁰

Factors of 81001363200

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 15
• Sum of prime factors: 222

Divisors of 81001363200

• Number of divisors d(n): 864
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 15 16 20 23 24 25 30 31 32 40 46 48 50 60 61 62 64 69 75 80 92 93 96 97 100 115 120 122 124 128 138 150 155 160 183 184 186 192 194 200 230 240 244 248 256 276 291 300 305 310 320 345 366 368 372 384 388 400 460 465 480 485 488 496 552 575 582 600 610 620 640 690 713 732 736 744 768 775 776 800 915 920 930 960 970 976 992 1104 1150 1164 1200 1220 1240 1280 1380 1403 1426 1455 1464 1472 1488 1525 1550 1552 1600 1725 1830 1840 1860 1891 1920 1940 1952 1984 2139 2208 2231 2300 2325 2328 2400 2425 2440 2480 2760 2806 2852 2910 2928 2944 2976 3007 3050 3100 3104 3200 3450 3565 3660 3680 3720 3782 3840 3880 3904 3968 4209 4278 4416 4462 4575 4600 4650 4656 4800 4850 4880 4960 5520 5612 5673 5704 5820 5856 5888 5917 5952 6014 6100 6200 6208 6400 6693 6900 7015 7130 7275 7320 7360 7440 7564 7760 7808 7936 8418 8556 8832 8924 9021 9150 9200 9300 9312 9455 9600 9700 9760 9920 10695 11040 11155 11224 11346 11408 11640 11712 11834 11904 12028 12200 12400 12416 13386 13800 14030 14260 14550 14640 14720 14880 15035 15128 15520 15616 16836 17112 17664 17751 17825 17848 18042 18300 18400 18600 18624 18910 19200 19400 19520 19840 21045 21390 22080 22310 22448 22692 22816 23280 23424 23668 23808 24056 24400 24800 24832 26772 27600 28060 28365 28520 29100 29280 29440 29585 29760 30070 30256 31040 33465 33672 34224 35075 35502 35650 35696 36084 36600 36800 37200 37248 37820 38800 39040 39680 42090 42780 43493 44160 44620 44896 45105 45384 45632 46560 46848 47275 47336 48112 48800 49600 53475 53544 55200 55775 56120 56730 57040 58200 58560 59170 59520 60140 60512 62080 66930 67344 68448 69161 70150 71004 71300 71392 72168 73200 73600 74400 74496 75175 75640 77600 78080 84180 85560 86986 88320 88755 89240 89792 90210 90768 91264 93120 94550 94672 96224 97600 99200 105225 106950 107088 110400 111550 112240 113460 114080 116400 117120 118340 119040 120280 121024 124160 130479 133860 134688 136091 136896 138322 140300 141825 142008 142600 142784 144336 146400 147200 147925 148800 150350 151280 155200 167325 168360 171120 173972 177510 178480 179584 180420 181536 182528 183427 186240 189100 189344 192448 195200 198400 207483 210450 213900 214176 217465 220800 223100 224480 225525 226920 228160 232800 234240 236680 240560 242048 260958 267720 269376 272182 273792 276644 280600 283650 284016 285200 285568 288672 292800 295850 297600 300700 302560 310400 334650 336720 342240 345805 347944 355020 356960 359168 360840 363072 366854 372480 378200 378688 384896 390400 408273 414966 420900 427800 428352 434930 441600 443775 446200 448960 451050 453840 456320 465600 473360 481120 484096 521916 535440 538752 544364 547584 550281 553288 561200 567300 568032 570400 571136 577344 585600 591700 595200 601400 605120 620800 652395 669300 673440 680455 684480 691610 695888 710040 713920 721680 726144 733708 756400 757376 769792 816546 829932 841800 855600 856704 869860 887550 892400 897920 902100 907680 912640 917135 931200 946720 962240 1037415 1043832 1070880 1077504 1087325 1088728 1100562 1106576 1122400 1134600 1136064 1140800 1154688 1171200 1183400 1202800 1210240 1304790 1338600 1346880 1360910 1368960 1383220 1391776 1420080 1427840 1443360 1452288 1467416 1512800 1514752 1633092 1659864 1683600 1711200 1713408 1729025 1739720 1775100 1784800 1795840 1804200 1815360 1834270 1862400 1893440 1924480 2041365 2074830 2087664 2141760 2174650 2177456 2201124 2213152 2244800 2269200 2272128 2281600 2309376 2366800 2405600 2420480 2609580 2677200 2693760 2721820 2737920 2751405 2766440 2783552 2840160 2855680 2886720 2934832 3025600 3261975 3266184 3319728 3367200 3402275 3422400 3458050 3479440 3550200 3569600 3608400 3630720 3668540 3786880 3848960 4082730 4149660 4175328 4218821 4283520 4349300 4354912 4402248 4426304 4489600 4538400 4544256 4563200 4585675 4733600 4811200 5187075 5219160 5354400 5387520 5443640 5502810 5532880 5567104 5680320 5773440 5869664 6051200 6523950 6532368 6639456 6734400 6804550 6844800 6916100 6958880 7100400 7139200 7216800 7261440 7337080 7573760 8165460 8299320 8350656 8437642 8567040 8698600 8709824 8804496 8852608 8979200 9076800 9171350 9467200 9622400 10206825 10374150 10438320 10708800 10887280 11005620 11065760 11134208 11360640 11546880 11739328 12102400 12656463 13047900 13064736 13278912 13468800 13609100 13689600 13757025 13832200 13917760 14200800 14278400 14433600 14674160 16330920 16598640 16701312 16875284 17397200 17419648 17608992 17705216 18153600 18342700 18934400 19244800 20413650 20748300 20876640 21094105 21417600 21774560 22011240 22131520 22721280 23478656 25312926 26095800 26129472 26557824 26937600 27218200 27514050 27664400 27835520 28401600 28867200 29348320 32661840 33197280 33402624 33750568 34794400 34839296 35217984 36307200 36685400 37868800 40827300 41496600 41753280 42188210 42835200 43549120 44022480 44263040 46957312 50625852 52191600 52258944 53115648 54436400 55028100 55328800 55671040 56803200 57734400 58696640 63282315 65323680 66394560 67501136 69588800 70435968 73370800 81654600 82993200 83506560 84376420 87098240 88044960 88526080 101251704 104383200 104517888 105470525 108872800 110056200 110657600 113606400 117393280 126564630 130647360 132789120 135002272 139177600 140871936 146741600 163309200 165986400 167013120 168752840 174196480 176089920 202503408 208766400 210941050 217745600 220112400 221315200 234786560 253129260 261294720 265578240 270004544 278355200 293483200 316411575 326618400 331972800 337505680 352179840 405006816 417532800 421882100 435491200 440224800 442630400 506258520 522589440 540009088 586966400 632823150 653236800 663945600 675011360 704359680 810013632 835065600 843764200 870982400 880449600 1012517040 1080018176 1173932800 1265646300 1306473600 1327891200 1350022720 1620027264 1687528400 1760899200 2025034080 2531292600 2612947200 2700045440 3240054528 3375056800 3521798400 4050068160 5062585200 5400090880 6750113600 8100136320 10125170400 13500227200 16200272640 20250340800 27000454400 40500681600 81001363200
• Sum of all divisors σ(n): 295679741952
• Sum of proper divisors (its aliquot sum) s(n): 214678378752
• 81001363200 is an abundant number, because the sum of its proper divisors (214678378752) is greater than itself. Its abundance is 133677015552

Bases of 81001363200

• Binary: 1001011011100000011101011011100000000₂
• Hexadecimal: 0x12DC0EB700
• Base-36: 117M4BUO

Squares and roots of 81001363200

• 81001363200 squared (81001363200²) is 6561220840258314240000
• 81001363200 cubed (81001363200³) is 531467832317172893573971968000000
• The square root of 81001363200 is 284607.3843033593
• The cube root of 81001363200 is 4326.7729833121

Scales and comparisons

• 81,001,363,200 seconds is equal to 2,575 years, 30 weeks, 5 days, 18 hours, 40 minutes.
• To count from 1 to 81,001,363,200 would take you about five thousand, one hundred fifty-one 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 81001363200 cubic inches would be around 360.6 feet tall.

Recreational maths with 81001363200

• 81001363200 backwards is 00236310018
• 81001363200 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 81001363200's digits is 24
• More coming soon!