20889981840

Names of 20889981840

• Cardinal: 20889981840 can be written as Twenty billion, eight hundred eighty-nine million, nine hundred eighty-one thousand, eight hundred forty.

Scientific notation

• Scientific notation: 2.088998184 × 10¹⁰

Factors of 20889981840

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 510

Divisors of 20889981840

• Number of divisors d(n): 720
• Complete list of divisors:
  1 2 3 4 5 6 7 8 10 12 13 14 15 16 20 21 23 24 26 28 30 35 39 40 42 46 48 49 52 56 60 65 69 70 78 80 84 91 92 98 104 105 112 115 120 130 138 140 147 156 161 168 169 182 184 195 196 208 210 230 240 245 260 273 276 280 294 299 312 322 336 338 345 364 368 390 392 420 455 457 460 483 490 507 520 546 552 560 588 598 624 637 644 676 690 728 735 780 784 805 840 845 897 910 914 920 966 980 1014 1040 1092 1104 1127 1176 1183 1196 1274 1288 1352 1365 1371 1380 1456 1470 1495 1560 1610 1680 1690 1794 1820 1828 1840 1911 1932 1960 2028 2093 2184 2254 2285 2352 2366 2392 2415 2535 2548 2576 2704 2730 2742 2760 2940 2990 3120 3185 3199 3220 3380 3381 3549 3588 3640 3656 3822 3864 3887 3920 4056 4186 4368 4485 4508 4570 4732 4784 4830 5070 5096 5460 5484 5520 5635 5880 5915 5941 5980 6279 6370 6398 6440 6760 6762 6855 7098 7176 7280 7312 7644 7728 7774 8112 8281 8372 8970 9016 9140 9464 9555 9597 9660 10140 10192 10465 10511 10920 10968 11270 11661 11760 11830 11882 11960 12558 12740 12796 12880 13520 13524 13710 14196 14352 14651 15288 15548 15995 16562 16744 16905 17745 17823 17940 18032 18280 18928 19110 19194 19320 19435 20280 20930 21022 21840 21936 22393 22540 23322 23660 23764 23920 24843 25116 25480 25592 27048 27209 27420 28392 29302 29705 30576 31096 31395 31533 31990 33124 33488 33810 35490 35646 35880 36560 38220 38388 38640 38870 40560 41405 41587 41860 42044 43953 44786 45080 46644 47320 47528 47985 49686 50232 50960 51184 52555 54096 54418 54840 56784 58305 58604 59410 62192 62790 63066 63980 66248 67179 67620 70980 71292 71760 73255 73577 76440 76776 77233 77740 81627 82810 83174 83720 84088 87906 89115 89572 90160 93288 94640 95056 95970 99372 100464 105110 108836 109680 111965 116610 117208 118820 124215 124761 125580 126132 127960 132496 134358 135240 136045 136643 141960 142584 146510 147154 152880 153552 154466 155480 157665 163254 165620 166348 167440 168176 175812 178230 179144 186576 190463 191940 198744 207935 210220 217672 219765 220731 223930 231699 233220 234416 237640 248430 249522 251160 252264 255920 268716 270480 272090 273286 283920 285168 291109 293020 294308 308932 310960 315330 326508 331240 332696 335895 351624 356460 358288 367885 380926 383880 386165 397488 408135 409929 415870 420440 435344 439530 441462 447860 463398 466440 475280 496860 499044 502320 504528 515039 537432 540631 544180 546572 571389 582218 586040 588616 617864 623805 630660 653016 662480 665392 671790 683215 703248 712920 735770 761852 767760 772330 816270 819858 831740 840880 873327 879060 882924 895720 926796 932880 952315 956501 993720 998088 1030078 1074864 1081262 1088360 1093144 1103655 1142778 1158495 1164436 1172080 1177232 1235728 1247610 1261320 1306032 1343580 1366430 1425840 1455545 1471540 1523704 1544660 1545117 1621893 1632540 1639716 1663480 1746654 1758120 1765848 1776359 1791440 1853592 1904630 1913002 1987440 1996176 2049645 2060156 2162524 2176720 2186288 2207310 2285556 2316990 2328872 2495220 2522640 2575195 2687160 2703155 2732860 2856945 2869503 2911090 2943080 3047408 3089320 3090234 3243786 3265080 3279432 3326960 3493308 3516240 3531696 3552718 3707184 3784417 3809260 3826004 4099290 4120312 4325048 4366635 4414620 4571112 4633980 4657744 4782505 4990440 5150390 5329077 5374320 5406310 5465720 5713890 5739006 5822180 5886160 6178640 6180468 6487572 6530160 6558864 6695507 6986616 7105436 7568834 7618520 7652008 7725585 8109465 8198580 8240624 8650096 8733270 8829240 8881795 9142224 9267960 9565010 9980880 10300780 10658154 10812620 10931440 11353251 11427780 11478012 11644360 12360936 12434513 12975144 13391014 13973232 14210872 14347515 15137668 15237040 15304016 15451170 16218930 16397160 17466540 17658480 17763590 18535920 18922085 19130020 20086521 20601560 21316308 21625240 22706502 22855560 22956024 23288720 24721872 24869026 25950288 26645385 26782028 28421744 28695030 30275336 30902340 32437860 32794320 33477535 34933080 35527180 37303539 37844170 38260040 40173042 41203120 42632616 43250480 45413004 45711120 45912048 49738052 53290770 53564056 56766255 57390060 60550672 61804680 62172565 64875720 66955070 69866160 71054360 74607078 75688340 76520080 80346084 85265232 87041591 90826008 99476104 100432605 106581540 107128112 113532510 114780120 123609360 124345130 129751440 133910140 142108720 149214156 151376680 160692168 174083182 181652016 186517695 198952208 200865210 213163080 227065020 229560240 248690260 261124773 267820280 298428312 302753360 321384336 348166364 373035390 401730420 426326160 435207955 454130040 497380520 522249546 535640560 596856624 696332728 746070780 803460840 870415910 908260080 994761040 1044499092 1305623865 1392665456 1492141560 1606921680 1740831820 2088998184 2611247730 2984283120 3481663640 4177996368 5222495460 6963327280 10444990920 20889981840
• Sum of all divisors σ(n): 85305218688
• Sum of proper divisors (its aliquot sum) s(n): 64415236848
• 20889981840 is an abundant number, because the sum of its proper divisors (64415236848) is greater than itself. Its abundance is 43525255008

Bases of 20889981840

• Binary: 10011011101001000111101001110010000₂
• Hexadecimal: 0x4DD23D390
• Base-36: 9LHCT5C

Squares and roots of 20889981840

• 20889981840 squared (20889981840²) is 436391341275529785600
• 20889981840 cubed (20889981840³) is 9116207194379059657563093504000
• The square root of 20889981840 is 144533.6702640599
• The cube root of 20889981840 is 2754.0977736315

Scales and comparisons

• 20,889,981,840 seconds is equal to 664 years, 12 weeks, 2 days, 4 hours, 44 minutes.
• To count from 1 to 20,889,981,840 would take you about one thousand, three hundred twenty-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 20889981840 cubic inches would be around 229.5 feet tall.

Recreational maths with 20889981840

• 20889981840 backwards is 04818998802
• The number of decimal digits it has is: 11
• The sum of 20889981840's digits is 57
• More coming soon!