20391981120

Names of 20391981120

• Cardinal: 20391981120 can be written as Twenty billion, three hundred ninety-one million, nine hundred eighty-one thousand, one hundred twenty.

Scientific notation

• Scientific notation: 2.039198112 × 10¹⁰

Factors of 20391981120

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 15
• Sum of prime factors: 1000

Divisors of 20391981120

• Number of divisors d(n): 560
• Complete list of divisors:
  1 2 3 4 5 6 7 8 9 10 12 14 15 16 18 20 21 24 27 28 30 32 35 36 40 42 45 48 49 54 56 60 63 64 70 72 80 84 90 96 98 105 108 112 120 126 135 140 144 147 160 168 180 189 192 196 210 216 224 240 245 252 270 280 288 294 315 320 336 343 360 378 392 420 432 441 448 480 490 504 540 560 576 588 630 672 686 720 735 756 784 840 864 882 945 960 980 983 1008 1029 1080 1120 1176 1260 1323 1344 1372 1440 1470 1512 1568 1680 1715 1728 1764 1890 1960 1966 2016 2058 2160 2205 2240 2352 2401 2520 2646 2744 2880 2940 2949 3024 3087 3136 3360 3430 3528 3780 3920 3932 4032 4116 4320 4410 4704 4802 4915 5040 5145 5292 5488 5880 5898 6048 6174 6615 6720 6860 6881 7056 7203 7560 7840 7864 8232 8640 8820 8847 9261 9408 9604 9830 10080 10290 10584 10976 11760 11796 12005 12096 12348 13230 13720 13762 14112 14406 14745 15120 15435 15680 15728 16464 17640 17694 18522 19208 19660 20160 20580 20643 21168 21609 21952 23520 23592 24010 24696 26460 26541 27440 27524 28224 28812 29490 30240 30870 31456 32928 34405 35280 35388 36015 37044 38416 39320 41160 41286 42336 43218 44235 46305 47040 47184 48020 48167 49392 52920 53082 54880 55048 57624 58980 60480 61740 61929 62912 64827 65856 68810 70560 70776 72030 74088 76832 78640 82320 82572 84672 86436 88470 92610 94368 96040 96334 98784 103215 105840 106164 108045 109760 110096 115248 117960 123480 123858 129654 132705 137620 141120 141552 144060 144501 148176 153664 157280 164640 165144 172872 176940 185220 185787 188736 192080 192668 197568 206430 211680 212328 216090 220192 230496 235920 240835 246960 247716 259308 265410 275240 283104 288120 289002 296352 309645 314560 324135 329280 330288 337169 345744 353880 370440 371574 384160 385336 412860 423360 424656 432180 433503 440384 460992 471840 481670 493920 495432 518616 530820 550480 566208 576240 578004 592704 619290 648270 660576 674338 691488 707760 722505 740880 743148 768320 770672 825720 849312 864360 867006 928935 943680 963340 987840 990864 1011507 1037232 1061640 1100960 1152480 1156008 1238580 1296540 1300509 1321152 1348676 1382976 1415520 1445010 1481760 1486296 1541344 1651440 1685845 1698624 1728720 1734012 1857870 1926680 1981728 2023014 2074464 2123280 2167515 2201920 2304960 2312016 2360183 2477160 2593080 2601018 2697352 2831040 2890020 2963520 2972592 3034521 3082688 3302880 3371690 3457440 3468024 3715740 3853360 3963456 4046028 4148928 4246560 4335030 4624032 4720366 4954320 5057535 5186160 5202036 5394704 5780040 5945184 6069042 6502545 6605760 6743380 6914880 6936048 7080549 7431480 7706720 8092056 8493120 8670060 9103563 9248064 9440732 9908640 10115070 10372320 10404072 10789408 11560080 11800915 11890368 12138084 13005090 13486760 13872096 14161098 14862960 15172605 15413440 16184112 17340120 18207126 18881464 19817280 20230140 20744640 20808144 21241647 21578816 23120160 23601830 24276168 26010180 26973520 27744192 28322196 29725920 30345210 32368224 34680240 35402745 36414252 37762928 40460280 41616288 42483294 45517815 46240320 47203660 48552336 52020360 53947040 56644392 59451840 60690420 63724941 64736448 69360480 70805490 72828504 75525856 80920560 83232576 84966588 91035630 94407320 97104672 104040720 106208235 107894080 113288784 121380840 127449882 138720960 141610980 145657008 151051712 161841120 169933176 182071260 188814640 194209344 208081440 212416470 226577568 242761680 254899764 283221960 291314016 318624705 323682240 339866352 364142520 377629280 416162880 424832940 453155136 485523360 509799528 566443920 582628032 637249410 679732704 728285040 755258560 849665880 971046720 1019599056 1132887840 1274498820 1359465408 1456570080 1699331760 2039198112 2265775680 2548997640 2913140160 3398663520 4078396224 5097995280 6797327040 10195990560 20391981120
• Sum of all divisors σ(n): 84008488320
• Sum of proper divisors (its aliquot sum) s(n): 63616507200
• 20391981120 is an abundant number, because the sum of its proper divisors (63616507200) is greater than itself. Its abundance is 43224526080

Bases of 20391981120

• Binary: 10010111111011101001111000001000000₂
• Hexadecimal: 0x4BF74F040
• Base-36: 9D8UXC0

Squares and roots of 20391981120

• 20391981120 squared (20391981120²) is 415832893998436454400
• 20391981120 cubed (20391981120³) is 8479656523491077487644540928000
• The square root of 20391981120 is 142800.4941167921
• The cube root of 20391981120 is 2732.0363504985

Scales and comparisons

• 20,391,981,120 seconds is equal to 648 years, 20 weeks, 6 days, 7 hours, 12 minutes.
• To count from 1 to 20,391,981,120 would take you about one thousand, two hundred ninety-six 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 20391981120 cubic inches would be around 227.7 feet tall.

Recreational maths with 20391981120

• 20391981120 backwards is 02118919302
• 20391981120 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 20391981120's digits is 36
• More coming soon!