21378785917896

Names of 21378785917896

• Cardinal: 21378785917896 can be written as Twenty-one trillion, three hundred seventy-eight billion, seven hundred eighty-five million, nine hundred seventeen thousand, eight hundred ninety-six.

Scientific notation

• Scientific notation: 2.1378785917896 × 10¹³

Factors of 21378785917896

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 991

Divisors of 21378785917896

• Number of divisors d(n): 768
• Complete list of divisors:
  1 2 3 4 6 8 9 11 12 18 22 24 27 31 33 36 37 44 54 62 66 72 74 81 88 93 99 108 111 124 132 148 162 186 198 216 222 243 248 264 279 296 297 324 333 341 372 396 407 444 486 558 594 648 666 682 744 792 814 837 888 891 907 961 972 999 1023 1116 1147 1188 1221 1332 1364 1628 1674 1782 1814 1922 1944 1998 2046 2232 2294 2376 2442 2511 2664 2673 2721 2728 2883 2997 3069 3256 3348 3441 3564 3628 3663 3844 3996 4092 4588 4884 5022 5346 5442 5766 5994 6138 6696 6882 7128 7256 7326 7533 7688 7992 8163 8184 8649 8991 9176 9207 9768 9977 10044 10323 10571 10692 10884 10989 11532 11988 12276 12617 13764 14652 15066 16326 17298 17982 18414 19954 20088 20646 21142 21384 21768 21978 23064 23976 24489 24552 25234 25947 27528 27621 28117 29304 29791 29931 30132 30969 31713 32652 32967 33559 34596 35557 35964 36828 37851 39908 41292 42284 43956 48978 50468 51894 55242 56234 59582 59862 60264 61938 63426 65304 65934 67118 69192 71114 71928 73467 73656 75702 77841 79816 82584 82863 84351 84568 87912 89373 89793 92907 95139 97956 98901 100677 100936 103788 106671 110484 112468 113553 119164 119724 123876 126852 131868 134236 142228 146934 151404 155682 165726 168702 178746 179586 185814 190278 195912 197802 201354 207576 213342 220401 220968 224936 227106 233523 238328 239448 247752 253053 253704 263736 268119 268472 269379 278721 284456 285417 293868 302031 302808 309287 311364 320013 327701 331452 337404 340659 357492 359172 369149 371628 380556 391127 395604 402708 426684 440802 454212 467046 506106 536238 538758 557442 570834 587736 604062 618574 622728 640026 655402 662904 674808 681318 714984 718344 738298 743256 759159 761112 782254 791208 804357 805416 808137 853368 856251 871627 881604 906093 908424 927861 934092 960039 983103 1012212 1021977 1040329 1072476 1077516 1102267 1107447 1114884 1141668 1173381 1208124 1237148 1280052 1310804 1362636 1476596 1518318 1564508 1608714 1616274 1712502 1743254 1763208 1812186 1855722 1868184 1920078 1966206 2024424 2043954 2080658 2144952 2155032 2204534 2214894 2229768 2277477 2283336 2346762 2413071 2416248 2424411 2474296 2560104 2568753 2614881 2621608 2718279 2725272 2783583 2880117 2949309 2953192 3036636 3065931 3120987 3129016 3217428 3232548 3306801 3322341 3425004 3486508 3520143 3624372 3711444 3840156 3932412 4087908 4161316 4409068 4429788 4554954 4693524 4826142 4848822 5137506 5229762 5436558 5567166 5760234 5898618 6073272 6131862 6241974 6434856 6465096 6613602 6644682 6832431 6850008 6973016 7040286 7239213 7248744 7422888 7680312 7844643 7864824 8154837 8175816 8322632 8350749 8640351 8818136 8847927 8859576 9109908 9362961 9387048 9587897 9652284 9697644 9920403 9967023 10275012 10459524 10560429 10873116 11134332 11443619 11520468 11797236 12124937 12263724 12483948 13227204 13289364 13664862 14080572 14478426 15689286 16309674 16701498 17280702 17695854 18219816 18725922 19175794 19304568 19395288 19840806 19934046 20550024 20919048 21120858 21746232 22268664 22887238 23040936 23533929 23594472 24249874 24527448 24967896 25052247 26454408 26543781 26578728 27020437 27329724 28088883 28161144 28763691 28956852 29761209 29901069 31378572 31681287 32250199 32619348 33402996 34330857 34561404 35391708 36374811 37451844 38351588 39681612 39868092 42241716 45774476 47067858 48499748 50104494 53087562 54040874 54659448 56177766 57527382 57913704 59522418 59802138 62757144 63362574 64500398 65238696 66805992 68661714 69122808 70601787 70783416 72749622 74903688 75156741 76703176 79363224 79631343 79736184 81061311 84266649 84483432 86291073 89283627 89703207 91548952 94135716 95043861 96750597 96999496 100208988 102992571 106175124 108081748 109124433 112355532 115054764 119044836 119604276 126725148 129000796 137323428 141203574 145499244 150313482 159262686 162122622 168533298 172582146 178567254 179406414 188271432 190087722 193501194 200417976 205985142 211805361 212350248 216163496 218248866 224711064 230109528 238089672 239208552 243183933 252799947 253450296 258001592 258873219 267850881 274646856 282407148 290251791 290998488 297224807 300626964 308977713 318525372 324245244 327373299 337066596 345164292 354752189 357134508 358812828 380175444 387002388 411970284 423610722 436497732 486367866 505599894 517746438 535701762 564814296 580503582 594449614 601253928 617955426 637050744 648490488 654746598 674133192 690328584 709504378 714269016 717625656 729551799 760350888 774004776 776619657 823940568 847221444 870755373 872995464 891674421 926933139 972735732 982119897 999756169 1011199788 1035492876 1064256567 1071403524 1161007164 1188899228 1235910852 1309493196 1419008756 1459103598 1553239314 1694442888 1741510746 1783348842 1853866278 1945471464 1964239794 1999512338 2022399576 2070985752 2128513134 2142807048 2188655397 2322014328 2329858971 2377798456 2471821704 2612266119 2618986392 2675023263 2780799417 2838017512 2918207196 2946359691 2999268507 3106478628 3192769701 3483021492 3566697684 3707732556 3928479588 3999024676 4257026268 4377310794 4659717942 5224532238 5350046526 5561598834 5836414392 5892719382 5998537014 6212957256 6385539402 6565966191 6966042984 7133395368 7415465112 7836798357 7856959176 7998049352 8025069789 8514052536 8754621588 8997805521 9319435884 9578309103 10449064476 10700093052 10997317859 11123197668 11785438764 11997074028 12771078804 13131932382 15673596714 16050139578 17509243176 17995611042 18638871768 19156618206 20898128952 21400186104 21994635718 22246395336 23570877528 23994148056 24075209367 25542157608 26263864764 26993416563 28734927309 31347193428 32100279156 32991953577 35991222084 38313236412 43989271436 48150418734 52527729528 53986833126 57469854618 62694386856 64200558312 65983907154 71982444168 72225628101 76626472824 80980249689 86204781927 87978542872 96300837468 98975860731 107973666252 114939709236 131967814308 144451256202 161960499378 172409563854 192601674936 197951721462 215947332504 229879418472 242940749067 263935628616 288902512404 296927582193 323920998756 344819127708 395903442924 485881498134 577805024808 593855164386 647841997512 689638255416 791806885848 890782746579 971762996268 1187710328772 1781565493158 1943525992536 2375420657544 2672348239737 3563130986316 5344696479474 7126261972632 10689392958948 21378785917896
• Sum of all divisors σ(n): 69593452830720
• Sum of proper divisors (its aliquot sum) s(n): 48214666912824
• 21378785917896 is an abundant number, because the sum of its proper divisors (48214666912824) is greater than itself. Its abundance is 26835880994928

Bases of 21378785917896

• Binary: 100110111000110100010111100001011101111001000₂
• Hexadecimal: 0x1371A2F0BBC8
• Base-36: 7KTA15GI0

Squares and roots of 21378785917896

• 21378785917896 squared (21378785917896²) is 457052487323228315253066816
• 21378785917896 cubed (21378785917896³) is 9771227279725173561749513707427578139136
• The square root of 21378785917896 is 4623719.9220861117
• The cube root of 21378785917896 is 27754.1339155999

Scales and comparisons

• 21,378,785,917,896 seconds is equal to 679,779 years, 13 weeks, 4 days, 19 hours, 51 minutes, 36 seconds.
• To count from 1 to 21,378,785,917,896 would take you about one million, six hundred ninety-nine thousand, four hundred forty-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 21378785917896 cubic inches would be around 2312.8 feet tall.

Recreational maths with 21378785917896

• 21378785917896 backwards is 69871958787312
• 21378785917896 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 21378785917896's digits is 81
• More coming soon!