21998561000

Names of 21998561000

• Cardinal: 21998561000 can be written as Twenty-one billion, nine hundred ninety-eight million, five hundred sixty-one thousand.

Scientific notation

• Scientific notation: 2.1998561 × 10¹⁰

Factors of 21998561000

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 87

Divisors of 21998561000

• Number of divisors d(n): 512
• Complete list of divisors:
  1 2 4 5 8 10 13 17 19 20 25 26 31 34 38 40 50 52 62 65 68 76 85 95 100 104 124 125 130 136 152 155 169 170 190 200 221 247 248 250 260 310 323 325 338 340 380 403 425 442 475 494 500 520 527 589 620 646 650 676 680 760 775 806 845 850 884 950 988 1000 1054 1105 1178 1235 1240 1292 1300 1352 1550 1612 1615 1625 1690 1700 1768 1900 1976 2015 2108 2125 2197 2210 2356 2375 2470 2584 2600 2635 2873 2945 3100 3211 3224 3230 3250 3380 3400 3800 3875 4030 4199 4216 4225 4250 4394 4420 4712 4750 4940 5239 5270 5525 5746 5890 6175 6200 6422 6460 6500 6760 6851 7657 7750 8060 8075 8398 8450 8500 8788 8840 9500 9880 10013 10075 10478 10540 10985 11050 11492 11780 12350 12844 12920 13000 13175 13702 14365 14725 15314 15500 16055 16120 16150 16796 16900 17000 17576 19000 20026 20150 20956 20995 21080 21125 21970 22100 22984 23560 24700 25688 26195 26350 27404 27625 28730 29450 30628 30875 31000 32110 32300 33592 33800 34255 37349 38285 40052 40300 40375 41743 41912 41990 42250 43940 44200 49400 50065 50375 52390 52700 54587 54808 54925 55250 57460 58900 61256 61750 64220 64600 65875 68107 68510 71825 73625 74698 76570 80104 80275 80600 80750 83486 83980 84500 87880 89063 99541 100130 100750 104780 104975 105400 109174 109850 110500 114920 117800 123500 128440 130169 130975 131750 136214 137020 143650 147250 149396 153140 160550 161500 166972 167960 169000 171275 178126 186745 191425 199082 200260 201500 208715 209560 209950 218348 219700 221000 247000 250325 260338 261950 263500 272428 272935 274040 274625 287300 294500 298792 306280 321100 323000 333944 340535 342550 356252 359125 373490 382850 398164 400520 401375 403000 417430 419900 436696 439400 445315 497705 500650 520676 523900 524875 527000 544856 545870 549250 574600 589000 642200 650845 654875 681070 685100 709631 712504 718250 746980 765700 796328 802750 834860 839800 856375 890630 933725 957125 995410 1001300 1041352 1043575 1047800 1049750 1091740 1098500 1157819 1251625 1294033 1301690 1309750 1362140 1364675 1370200 1419262 1436500 1493960 1531400 1605500 1669720 1692197 1702675 1712750 1781260 1867450 1914250 1990820 2002600 2087150 2099500 2183480 2197000 2226575 2315638 2488525 2503250 2588066 2603380 2619500 2724280 2729350 2838524 2873000 3211000 3254225 3384394 3405350 3425500 3548155 3562520 3734900 3828500 3981640 4174300 4199000 4453150 4631276 4668625 4977050 5006500 5176132 5206760 5217875 5239000 5458700 5677048 5789095 6470165 6508450 6768788 6810700 6823375 6851000 7096310 7469800 7657000 8348600 8460985 8513375 8906300 9262552 9337250 9954100 10013000 10352264 10435750 10917400 11132875 11578190 12442625 12940330 13016900 13537576 13621400 13646750 14192620 16271125 16921970 17026750 17740775 17812600 18674500 19908200 20871500 21998561 22265750 23156380 24885250 25880660 26033800 27293500 28385240 28945475 32350825 32542250 33843940 34053500 35481550 37349000 41743000 42304925 43997122 44531500 46312760 49770500 51761320 54587000 57890950 64701650 65084500 67687880 68107000 70963100 84609850 87994244 88703875 89063000 99541000 109992805 115781900 129403300 130169000 141926200 144727375 161754125 169219700 175988488 177407750 211524625 219985610 231563800 258806600 289454750 323508250 338439400 354815500 423049250 439971220 549964025 578909500 647016500 709631000 846098500 879942440 1099928050 1157819000 1294033000 1692197000 2199856100 2749820125 4399712200 5499640250 10999280500 21998561000
• Sum of all divisors σ(n): 64157184000
• Sum of proper divisors (its aliquot sum) s(n): 42158623000
• 21998561000 is an abundant number, because the sum of its proper divisors (42158623000) is greater than itself. Its abundance is 20160062000

Bases of 21998561000

• Binary: 10100011111001101110110011011101000₂
• Hexadecimal: 0x51F3766E8
• Base-36: A3TDIAW

Squares and roots of 21998561000

• 21998561000 squared (21998561000²) is 483936686070721000000
• 21998561000 cubed (21998561000³) is 10645910708664606232481000000000
• The square root of 21998561000 is 148319.1187945775
• The cube root of 21998561000 is 2801.9782363747

Scales and comparisons

• 21,998,561,000 seconds is equal to 699 years, 25 weeks, 1 day, 23 hours, 23 minutes, 20 seconds.
• To count from 1 to 21,998,561,000 would take you about one thousand, three hundred ninety-eight 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 21998561000 cubic inches would be around 233.5 feet tall.

Recreational maths with 21998561000

• 21998561000 backwards is 00016589912
• The number of decimal digits it has is: 11
• The sum of 21998561000's digits is 41
• More coming soon!