81789030400

Names of 81789030400

• Cardinal: 81789030400 can be written as Eighty-one billion, seven hundred eighty-nine million, thirty thousand, four hundred.

Scientific notation

• Scientific notation: 8.17890304 × 10¹⁰

Factors of 81789030400

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 19
• Sum of prime factors: 89

Divisors of 81789030400

• Number of divisors d(n): 936
• Complete list of divisors:
  1 2 4 5 7 8 10 11 14 16 20 22 23 25 28 32 35 40 41 44 46 50 55 56 64 70 77 80 82 88 92 100 110 112 115 121 128 140 154 160 161 164 175 176 184 200 205 220 224 230 242 253 256 275 280 287 308 320 322 328 350 352 368 385 400 410 440 448 451 460 484 506 512 550 560 574 575 605 616 640 644 656 700 704 736 770 800 805 820 847 880 896 902 920 943 968 1012 1024 1025 1100 1120 1148 1150 1210 1232 1265 1280 1288 1312 1400 1408 1435 1472 1540 1600 1610 1640 1694 1760 1771 1792 1804 1840 1886 1925 1936 2024 2048 2050 2200 2240 2255 2296 2300 2420 2464 2530 2560 2576 2624 2783 2800 2816 2870 2944 3025 3080 3157 3200 3220 3280 3388 3520 3542 3584 3608 3680 3772 3850 3872 4025 4048 4096 4100 4235 4400 4480 4510 4592 4600 4715 4840 4928 4961 5060 5120 5152 5248 5566 5600 5632 5740 5888 6050 6160 6314 6325 6400 6440 6560 6601 6776 7040 7084 7168 7175 7216 7360 7544 7700 7744 8050 8096 8200 8470 8800 8855 8960 9020 9184 9200 9430 9680 9856 9922 10120 10240 10304 10373 10496 11132 11200 11264 11275 11480 11776 12100 12320 12628 12650 12800 12880 13120 13202 13552 13915 14080 14168 14336 14350 14432 14720 15088 15400 15488 15785 16100 16192 16400 16940 17600 17710 17920 18040 18368 18400 18860 19360 19481 19712 19844 20240 20480 20608 20746 20992 21175 22264 22400 22528 22550 22960 23552 23575 24200 24640 24805 25256 25300 25600 25760 26240 26404 27104 27830 28160 28336 28672 28700 28864 29440 30176 30800 30976 31570 32200 32384 32800 33005 33880 34727 35200 35420 35840 36080 36736 36800 37720 38720 38962 39424 39688 40480 41216 41492 41984 42350 44275 44528 44800 45056 45100 45920 47104 47150 48400 49280 49610 50512 50600 51200 51520 51865 52480 52808 54208 55660 56320 56672 57400 57728 58880 60352 61600 61952 63140 64400 64768 65600 66010 67760 69454 69575 70400 70840 71680 72160 72611 73472 73600 75440 77440 77924 78848 78925 79376 80960 82432 82984 83968 84700 88550 89056 89600 90200 91840 94208 94300 96800 97405 98560 99220 101024 101200 102400 103040 103730 104960 105616 108416 111320 112640 113344 114103 114800 115456 117760 120704 123200 123904 124025 126280 128800 129536 131200 132020 135520 138908 139150 140800 141680 143360 144320 145222 146944 147200 150880 154880 155848 157696 157850 158752 161920 164864 165025 165968 167936 169400 173635 177100 178112 179200 180400 183680 188600 193600 194810 197120 198440 202048 202400 206080 207460 209920 211232 216832 222640 225280 226688 228206 229600 230912 235520 241408 246400 247808 248050 252560 257600 259072 259325 262400 264040 271040 277816 278300 281600 283360 288640 290444 293888 294400 301760 309760 311696 315392 315700 317504 323840 329728 330050 331936 338800 347270 354200 356224 358400 360800 363055 367360 377200 387200 389620 394240 396880 404096 404800 412160 414920 419840 422464 433664 445280 453376 456412 459200 461824 471040 482816 487025 492800 495616 496100 505120 515200 518144 518650 524800 528080 542080 555632 556600 563200 566720 570515 577280 580888 587776 588800 603520 619520 623392 631400 635008 647680 659456 660100 663872 677600 694540 708400 712448 716800 721600 726110 734720 754400 774400 779240 788480 793760 798721 808192 809600 824320 829840 839680 844928 867328 868175 890560 906752 912824 918400 923648 965632 974050 985600 992200 1010240 1030400 1036288 1037300 1049600 1056160 1084160 1111264 1113200 1126400 1133440 1141030 1154560 1161776 1175552 1177600 1207040 1239040 1246784 1262800 1270016 1295360 1320200 1327744 1355200 1389080 1416800 1424896 1443200 1452220 1469440 1508800 1548800 1558480 1576960 1587520 1597442 1616384 1619200 1648640 1659680 1689856 1734656 1736350 1781120 1813504 1815275 1825648 1836800 1847296 1931264 1948100 1971200 1984400 2020480 2060800 2074600 2099200 2112320 2168320 2222528 2226400 2266880 2282060 2309120 2323552 2355200 2414080 2478080 2493568 2525600 2540032 2590720 2640400 2655488 2710400 2778160 2833600 2849792 2852575 2886400 2904440 2938880 3017600 3097600 3116960 3175040 3194884 3232768 3238400 3297280 3319360 3379712 3469312 3472700 3562240 3627008 3630550 3651296 3673600 3862528 3896200 3942400 3968800 3993605 4040960 4121600 4149200 4198400 4224640 4336640 4445056 4452800 4533760 4564120 4618240 4647104 4828160 4987136 5051200 5080064 5181440 5280800 5310976 5420800 5556320 5667200 5699584 5705150 5772800 5808880 5877760 6035200 6195200 6233920 6350080 6389768 6465536 6476800 6638720 6759424 6945400 7124480 7254016 7261100 7302592 7347200 7792400 7884800 7937600 7987210 8081920 8243200 8298400 8449280 8673280 8890112 8905600 9067520 9128240 9236480 9294208 9656320 9974272 10102400 10160128 10561600 10621952 10841600 11112640 11334400 11399168 11410300 11545600 11617760 12070400 12390400 12467840 12700160 12779536 12931072 12953600 13277440 13518848 13890800 14248960 14522200 14605184 14694400 15584800 15875200 15974420 16163840 16486400 16596800 16898560 17346560 17780224 17811200 18135040 18256480 18588416 19312640 19948544 19968025 20204800 20320256 21123200 21243904 21683200 22225280 22668800 22820600 23091200 23235520 24140800 24935680 25400320 25559072 25907200 26554880 27037696 27781600 28497920 29044400 29210368 29388800 31169600 31750400 31948840 32327680 33193600 33797120 35560448 35622400 36270080 36512960 37176832 39897088 39936050 40409600 42246400 42487808 43366400 44450560 45337600 45641200 46182400 46471040 48281600 49871360 50800640 51118144 53109760 55563200 56995840 58088800 58420736 62339200 63500800 63897680 64655360 66387200 67594240 71120896 71244800 73025920 74353664 79794176 79872100 80819200 84492800 86732800 88901120 90675200 91282400 92942080 96563200 99742720 101601280 102236288 106219520 111126400 116177600 116841472 124678400 127001600 127795360 132774400 135188480 142241792 142489600 146051840 148707328 159744200 161638400 168985600 177802240 181350400 182564800 185884160 199485440 204472576 212439040 222252800 232355200 233682944 249356800 254003200 255590720 265548800 284979200 292103680 297414656 319488400 323276800 337971200 355604480 365129600 371768320 398970880 408945152 444505600 464710400 467365888 498713600 508006400 511181440 531097600 584207360 638976800 675942400 711208960 730259200 743536640 817890304 889011200 929420800 997427200 1022362880 1062195200 1168414720 1277953600 1460518400 1487073280 1635780608 1778022400 1858841600 1994854400 2044725760 2336829440 2555907200 2921036800 3271561216 3556044800 3717683200 4089451520 5111814400 5842073600 7435366400 8178903040 10223628800 11684147200 16357806080 20447257600 40894515200 81789030400
• Sum of all divisors σ(n): 272333319552
• Sum of proper divisors (its aliquot sum) s(n): 190544289152
• 81789030400 is an abundant number, because the sum of its proper divisors (190544289152) is greater than itself. Its abundance is 108755258752

Bases of 81789030400

• Binary: 1001100001011000000011001000000000000₂
• Hexadecimal: 0x130B019000
• Base-36: 11KN2RR4

Squares and roots of 81789030400

• 81789030400 squared (81789030400²) is 6689445493772124160000
• 81789030400 cubed (81789030400³) is 547123260849271273594814464000000
• The square root of 81789030400 is 285987.8151250503
• The cube root of 81789030400 is 4340.7524586019

Scales and comparisons

• 81,789,030,400 seconds is equal to 2,600 years, 33 weeks, 1 day, 7 hours, 6 minutes, 40 seconds.
• To count from 1 to 81,789,030,400 would take you about five thousand, two hundred 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 81789030400 cubic inches would be around 361.7 feet tall.

Recreational maths with 81789030400

• 81789030400 backwards is 00403098718
• 81789030400 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 81789030400's digits is 40
• More coming soon!