21387988998144

Names of 21387988998144

• Cardinal: 21387988998144 can be written as Twenty-one trillion, three hundred eighty-seven billion, nine hundred eighty-eight million, nine hundred ninety-eight thousand, one hundred forty-four.

Scientific notation

• Scientific notation: 2.1387988998144 × 10¹³

Factors of 21387988998144

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 18
• Sum of prime factors: 353

Divisors of 21387988998144

• Number of divisors d(n): 432
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 18 24 27 32 36 48 54 64 71 72 96 108 128 142 144 192 213 216 256 277 284 288 384 426 432 512 554 568 576 639 768 831 852 864 1024 1108 1136 1152 1278 1536 1662 1704 1728 1917 2048 2216 2272 2304 2493 2556 3072 3324 3408 3456 3834 4432 4544 4608 4986 5041 5112 6144 6648 6816 6912 7479 7668 8864 9088 9216 9972 10082 10224 13296 13632 13824 14958 15123 15336 17728 18176 18432 19667 19944 20164 20448 26592 27264 27648 29916 30246 30672 35456 36352 39334 39888 40328 40896 45369 53184 54528 55296 59001 59832 60492 61344 70912 72704 76729 78668 79776 80656 81792 90738 106368 109056 118002 119664 120984 122688 136107 141824 145408 153458 157336 159552 161312 163584 177003 181476 212736 218112 230187 236004 239328 241968 245376 272214 283648 306916 314672 319104 322624 327168 354006 362952 425472 436224 460374 472008 478656 483936 490752 531009 544428 567296 613832 629344 638208 645248 654336 690561 708012 725904 850944 920748 944016 957312 967872 981504 1062018 1088856 1227664 1258688 1276416 1290496 1308672 1381122 1396357 1416024 1451808 1701888 1841496 1888032 1914624 1935744 1963008 2071683 2124036 2177712 2455328 2517376 2552832 2580992 2762244 2792714 2832048 2903616 3682992 3776064 3829248 3871488 3926016 4143366 4189071 4248072 4355424 4910656 5034752 5105664 5161984 5447759 5524488 5585428 5664096 5807232 7365984 7552128 7658496 7742976 8286732 8378142 8496144 8710848 9821312 10069504 10323968 10895518 11048976 11170856 11328192 11614464 12567213 14731968 15104256 15316992 15485952 16343277 16573464 16756284 16992288 17421696 19642624 20139008 21791036 22097952 22341712 22656384 23228928 25134426 29463936 30208512 30971904 32686554 33146928 33512568 33984576 34843392 37701639 39285248 40278016 43582072 44195904 44683424 45312768 46457856 49029831 50268852 58927872 60417024 65373108 66293856 67025136 67969152 69686784 75403278 78570496 87164144 88391808 89366848 90625536 92915712 98059662 100537704 117855744 120834048 130746216 132587712 134050272 135938304 139373568 147089493 150806556 157140992 174328288 176783616 178733696 181251072 196119324 201075408 235711488 261492432 265175424 268100544 271876608 278747136 294178986 301613112 348656576 353567232 357467392 362502144 386790889 392238648 402150816 471422976 522984864 530350848 536201088 543753216 588357972 603226224 697313152 707134464 714934784 773581778 784477296 804301632 1045969728 1060701696 1072402176 1087506432 1160372667 1176715944 1206452448 1394626304 1414268928 1429869568 1547163556 1568954592 1608603264 2091939456 2121403392 2144804352 2320745334 2353431888 2412904896 2789252608 2859739136 3094327112 3137909184 3217206528 3481118001 4183878912 4242806784 4289608704 4641490668 4706863776 4825809792 5578505216 6188654224 6275818368 6434413056 6962236002 8367757824 8579217408 9282981336 9413727552 9651619584 10443354003 11157010432 12377308448 12551636736 12868826112 13924472004 16735515648 18565962672 18827455104 19303239168 20886708006 24754616896 25103273472 25737652224 27848944008 33471031296 37131925344 37654910208 38606478336 41773416012 49509233792 50206546944 55697888016 74263850688 75309820416 77212956672 83546832024 99018467584 100413093888 111395776032 148527701376 150619640832 167093664048 198036935168 222791552064 297055402752 301239281664 334187328096 396073870336 445583104128 594110805504 668374656192 792147740672 891166208256 1188221611008 1336749312384 1782332416512 2376443222016 2673498624768 3564664833024 5346997249536 7129329666048 10693994499072 21387988998144
• Sum of all divisors σ(n): 64494086365800
• Sum of proper divisors (its aliquot sum) s(n): 43106097367656
• 21387988998144 is an abundant number, because the sum of its proper divisors (43106097367656) is greater than itself. Its abundance is 21718108369512

Bases of 21387988998144

• Binary: 100110111001111000111011111001001100000000000₂
• Hexadecimal: 0x1373C77C9800
• Base-36: 7KXI8FEO0

Squares and roots of 21387988998144

• 21387988998144 squared (21387988998144²) is 457446073384728784835444736
• 21387988998144 cubed (21387988998144³) is 9783851584796752105841802199021318569984
• The square root of 21387988998144 is 4624715.0180464093
• The cube root of 21387988998144 is 27758.1158517123

Scales and comparisons

• 21,387,988,998,144 seconds is equal to 680,071 years, 46 weeks, 2 days, 23 hours, 2 minutes, 24 seconds.
• To count from 1 to 21,387,988,998,144 would take you about one million, seven hundred thousand, one hundred seventy-nine 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 21387988998144 cubic inches would be around 2313.2 feet tall.

Recreational maths with 21387988998144

• 21387988998144 backwards is 44189988978312
• The number of decimal digits it has is: 14
• The sum of 21387988998144's digits is 81
• More coming soon!