21552991824

Names of 21552991824

• Cardinal: 21552991824 can be written as Twenty-one billion, five hundred fifty-two million, nine hundred ninety-one thousand, eight hundred twenty-four.

Scientific notation

• Scientific notation: 2.1552991824 × 10¹⁰

Factors of 21552991824

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 165

Divisors of 21552991824

• Number of divisors d(n): 480
• Complete list of divisors:
  1 2 3 4 6 7 8 12 13 14 16 21 24 26 28 39 42 43 48 49 52 56 78 84 86 91 97 98 104 112 129 147 156 168 169 172 182 194 196 208 258 273 291 294 301 312 336 338 344 364 388 392 507 516 546 559 582 588 602 624 637 676 679 688 728 776 784 903 1014 1032 1092 1118 1164 1176 1183 1204 1261 1274 1352 1358 1456 1552 1677 1806 1911 2028 2037 2064 2107 2184 2197 2236 2328 2352 2366 2408 2522 2548 2704 2716 3354 3549 3612 3783 3822 3913 4056 4074 4171 4214 4368 4394 4472 4656 4732 4753 4816 5044 5096 5432 6321 6591 6708 7098 7224 7267 7566 7644 7826 8112 8148 8281 8342 8428 8788 8827 8944 9464 9506 10088 10192 10864 11739 12513 12642 13182 13416 14196 14259 14448 14534 15132 15288 15379 15652 16296 16393 16562 16684 16856 17576 17654 18928 19012 20176 21801 23478 24843 25026 25284 26364 26481 26832 27391 28392 28518 29068 29197 30264 30576 30758 31304 32592 32786 33124 33368 33712 35152 35308 38024 43602 46137 46956 49179 49686 50052 50568 50869 52728 52962 54223 54782 56784 57036 58136 58394 60528 61516 61789 62608 65572 66248 66736 70616 76048 82173 87204 87591 92274 93912 94471 98358 99372 100104 101136 101738 105456 105924 107653 108446 109564 114072 114751 116272 116788 123032 123578 131144 132496 141232 152607 162669 164346 174408 175182 184548 185367 187824 188942 196716 198744 200208 203476 204379 211848 213109 215306 216892 219128 228144 229502 233576 246064 247156 262288 283413 305214 322959 325338 328692 344253 348816 350364 356083 369096 370734 377884 379561 393432 397488 406952 408758 423696 426218 430612 433784 438256 459004 467152 494312 566826 610428 613137 639327 645918 650676 657384 661297 688506 700728 704899 712166 738192 741468 755768 759122 786864 803257 813904 817516 852436 861224 867568 918008 988624 1068249 1133652 1138683 1220856 1226274 1278654 1291836 1301352 1314768 1322594 1377012 1401456 1409798 1424332 1482936 1491763 1511536 1518244 1606514 1635032 1704872 1722448 1836016 1983891 2114697 2136498 2267304 2277366 2409771 2441712 2452548 2557308 2583672 2602704 2645188 2656927 2754024 2819596 2848664 2965872 2983526 3036488 3213028 3270064 3409744 3967782 4229394 4272996 4475289 4534608 4554732 4629079 4819542 4905096 4934293 5114616 5167344 5290376 5313854 5508048 5639192 5697328 5967052 6072976 6426056 7935564 7970781 8458788 8545992 8950578 9109464 9163687 9258158 9639084 9810192 9868586 10229232 10442341 10580752 10627708 11278384 11934104 12852112 13887237 14802879 15871128 15941562 16917576 17091984 17901156 18218928 18327374 18516316 19278168 19737172 20884682 21255416 23868208 27491061 27774474 29605758 31327023 31742256 31883124 33835152 34540051 35802312 36654748 37032632 38556336 39474344 41769364 42510832 54982122 55548948 59211516 62654046 63766248 64145809 69080102 71604624 73309496 74065264 78948688 83538728 103620153 109964244 111097896 118423032 125308092 127532496 128291618 138160204 146618992 167077456 192437427 207240306 219928488 222195792 236846064 250616184 256583236 276320408 384874854 414480612 439856976 449020663 501232368 513166472 552640816 769749708 828961224 898041326 1026332944 1347061989 1539499416 1657922448 1796082652 2694123978 3078998832 3592165304 5388247956 7184330608 10776495912 21552991824
• Sum of all divisors σ(n): 72535774080
• Sum of proper divisors (its aliquot sum) s(n): 50982782256
• 21552991824 is an abundant number, because the sum of its proper divisors (50982782256) is greater than itself. Its abundance is 29429790432

Bases of 21552991824

• Binary: 10100000100101010001000111001010000₂
• Hexadecimal: 0x504A88E50
• Base-36: 9WG3EXC

Squares and roots of 21552991824

• 21552991824 squared (21552991824²) is 464531456565410846976
• 21552991824 cubed (21552991824³) is 10012042685345111106074643124224
• The square root of 21552991824 is 146809.3723983589
• The cube root of 21552991824 is 2782.9315307137

Scales and comparisons

• 21,552,991,824 seconds is equal to 685 years, 16 weeks, 3 days, 22 hours, 10 minutes, 24 seconds.
• To count from 1 to 21,552,991,824 would take you about one thousand, three hundred seventy 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 21552991824 cubic inches would be around 231.9 feet tall.

Recreational maths with 21552991824

• 21552991824 backwards is 42819925512
• 21552991824 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21552991824's digits is 48
• More coming soon!