21811010400

Names of 21811010400

• Cardinal: 21811010400 can be written as Twenty-one billion, eight hundred eleven million, ten thousand, four hundred.

Scientific notation

• Scientific notation: 2.18110104 × 10¹⁰

Factors of 21811010400

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 1097

Divisors of 21811010400

• Number of divisors d(n): 576
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 16 18 20 23 24 25 27 30 32 36 40 43 45 46 48 50 54 60 69 72 75 80 86 90 92 96 100 108 115 120 129 135 138 144 150 160 172 180 184 200 207 215 216 225 230 240 258 270 276 288 300 344 345 360 368 387 400 414 430 432 450 460 480 516 540 552 575 600 621 645 675 688 690 720 736 774 800 828 860 864 900 920 989 1021 1032 1035 1075 1080 1104 1150 1161 1200 1242 1290 1350 1376 1380 1440 1548 1656 1720 1725 1800 1840 1935 1978 2042 2064 2070 2150 2160 2208 2300 2322 2400 2484 2580 2700 2760 2967 3063 3096 3105 3225 3312 3440 3450 3600 3680 3870 3956 4084 4128 4140 4300 4320 4600 4644 4945 4968 5105 5160 5175 5400 5520 5805 5934 6126 6192 6210 6450 6624 6880 6900 7200 7740 7912 8168 8280 8600 8901 9189 9200 9288 9675 9890 9936 10210 10320 10350 10800 11040 11610 11868 12252 12384 12420 12900 13800 14835 15315 15480 15525 15824 16336 16560 17200 17802 18378 18400 18576 19350 19780 19872 20420 20640 20700 21600 23220 23483 23736 24504 24725 24840 25525 25800 26703 27567 27600 29025 29670 30630 30960 31050 31648 32672 33120 34400 35604 36756 37152 38700 39560 40840 41400 43903 44505 45945 46440 46966 47472 49008 49450 49680 51050 51600 53406 55134 55200 58050 59340 61260 61920 62100 70449 71208 73512 74175 76575 77400 79120 81680 82800 87806 89010 91890 92880 93932 94944 98016 98900 99360 102100 103200 106812 110268 116100 117415 118680 122520 124200 131709 133515 137835 140898 142416 147024 148350 153150 154800 158240 163360 165600 175612 178020 183780 185760 187864 197800 204200 211347 213624 219515 220536 222525 229725 232200 234830 237360 245040 248400 263418 267030 275670 281796 284832 294048 296700 306300 309600 351224 352245 356040 367560 375728 395127 395600 408400 422694 427248 439030 441072 445050 459450 464400 469660 474720 490080 496800 526836 534060 551340 563592 587075 593400 612600 634041 658545 667575 689175 702448 704490 712080 735120 751456 790254 791200 816800 845388 854496 878060 882144 890100 918900 928800 939320 1009769 1053672 1056735 1068120 1097575 1102680 1127184 1174150 1185381 1186800 1225200 1268082 1317090 1335150 1378350 1404896 1408980 1424160 1470240 1580508 1690776 1756120 1761225 1780200 1837800 1878640 1975635 2019538 2107344 2113470 2136240 2195150 2205360 2254368 2348300 2370762 2373600 2450400 2536164 2634180 2670300 2756700 2817960 3029307 3161016 3170205 3292725 3381552 3512240 3522450 3560400 3675600 3757280 3951270 4039076 4214688 4226940 4272480 4390300 4410720 4696600 4741524 5048845 5072328 5268360 5283675 5340600 5513400 5635920 5926905 6058614 6322032 6340410 6585450 6763104 7024480 7044900 7120800 7351200 7902540 8078152 8453880 8780600 9087921 9393200 9483048 9878175 10097690 10144656 10536720 10567350 10681200 11026800 11271840 11853810 12117228 12644064 12680820 13170900 14089800 15146535 15805080 15851025 16156304 16907760 17561200 18175842 18786400 18966096 19756350 20195380 20289312 21073440 21134700 21362400 22053600 23707620 24234456 25244225 25361640 26341800 27263763 28179600 29634525 30293070 31610160 31702050 32312608 33815520 35122400 36351684 37932192 39512700 40390760 42269400 45439605 47415240 48468912 50488450 50723280 52683600 54527526 56359200 59269050 60586140 63220320 63404100 72703368 75732675 79025400 80781520 84538800 90879210 94830480 96937824 100976900 101446560 105367200 109055052 118538100 121172280 126808200 136318815 145406736 151465350 158050800 161563040 169077600 181758420 189660960 201953800 218110104 227198025 237076200 242344560 253616400 272637630 290813472 302930700 316101600 363516840 403907600 436220208 454396050 474152400 484689120 507232800 545275260 605861400 681594075 727033680 807815200 872440416 908792100 948304800 1090550520 1211722800 1363188150 1454067360 1817584200 2181101040 2423445600 2726376300 3635168400 4362202080 5452752600 7270336800 10905505200 21811010400
• Sum of all divisors σ(n): 84309603840
• Sum of proper divisors (its aliquot sum) s(n): 62498593440
• 21811010400 is an abundant number, because the sum of its proper divisors (62498593440) is greater than itself. Its abundance is 40687583040

Bases of 21811010400

• Binary: 10100010100000010011001101101100000₂
• Hexadecimal: 0x514099B60
• Base-36: A0PPNC0

Squares and roots of 21811010400

• 21811010400 squared (21811010400²) is 475720174668908160000
• 21811010400 cubed (21811010400³) is 10375937677193372434404864000000
• The square root of 21811010400 is 147685.5118148019
• The cube root of 21811010400 is 2793.9926648365

Scales and comparisons

• 21,811,010,400 seconds is equal to 693 years, 27 weeks, 1 day, 6 hours.
• To count from 1 to 21,811,010,400 would take you about one thousand, three hundred eighty-seven 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 21811010400 cubic inches would be around 232.8 feet tall.

Recreational maths with 21811010400

• 21811010400 backwards is 00401011812
• 21811010400 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21811010400's digits is 18
• More coming soon!