21071851945984

Names of 21071851945984

• Cardinal: 21071851945984 can be written as Twenty-one trillion, seventy-one billion, eight hundred fifty-one million, nine hundred forty-five thousand, nine hundred eighty-four.

Scientific notation

• Scientific notation: 2.1071851945984 × 10¹³

Factors of 21071851945984

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 27
• Sum of prime factors: 257

Divisors of 21071851945984

• Number of divisors d(n): 368
• Complete list of divisors:
  1 2 4 7 8 14 16 28 32 49 56 64 97 98 112 128 151 194 196 224 256 302 343 388 392 448 512 604 679 686 776 784 896 1024 1057 1208 1358 1372 1552 1568 1792 2048 2114 2416 2716 2744 3104 3136 3584 4096 4228 4753 4832 5432 5488 6208 6272 7168 7399 8192 8456 9506 9664 10864 10976 12416 12544 14336 14647 14798 16384 16912 19012 19328 21728 21952 24832 25088 28672 29294 29596 32768 33271 33824 38024 38656 43456 43904 49664 50176 51793 57344 58588 59192 65536 66542 67648 76048 77312 86912 87808 99328 100352 102529 103586 114688 117176 118384 131072 133084 135296 152096 154624 173824 175616 198656 200704 205058 207172 229376 234352 236768 262144 266168 270592 304192 309248 347648 351232 397312 401408 410116 414344 458752 468704 473536 524288 532336 541184 608384 618496 695296 702464 717703 794624 802816 820232 828688 917504 937408 947072 1048576 1064672 1082368 1216768 1236992 1390592 1404928 1435406 1589248 1605632 1640464 1657376 1835008 1874816 1894144 2097152 2129344 2164736 2433536 2473984 2781184 2809856 2870812 3178496 3211264 3280928 3314752 3670016 3749632 3788288 4194304 4258688 4329472 4867072 4947968 5023921 5562368 5619712 5741624 6356992 6422528 6561856 6629504 7340032 7499264 7576576 8517376 8658944 9734144 9895936 10047842 11124736 11239424 11483248 12713984 12845056 13123712 13259008 14680064 14998528 15153152 17034752 17317888 19468288 19791872 20095684 22249472 22478848 22966496 25427968 25690112 26247424 26518016 29360128 29997056 30306304 34069504 34635776 38936576 39583744 40191368 44498944 44957696 45932992 50855936 51380224 52494848 53036032 59994112 60612608 68139008 69271552 77873152 79167488 80382736 88997888 89915392 91865984 101711872 102760448 104989696 106072064 119988224 121225216 136278016 138543104 155746304 158334976 160765472 177995776 179830784 183731968 203423744 205520896 209979392 212144128 239976448 242450432 272556032 277086208 311492608 316669952 321530944 355991552 359661568 367463936 406847488 419958784 424288256 479952896 484900864 545112064 554172416 622985216 633339904 643061888 711983104 719323136 734927872 839917568 848576512 959905792 969801728 1090224128 1108344832 1245970432 1286123776 1423966208 1438646272 1469855744 1679835136 1697153024 1919811584 1939603456 2180448256 2216689664 2491940864 2572247552 2847932416 2939711488 3359670272 3394306048 3839623168 3879206912 4360896512 4433379328 4983881728 5144495104 5879422976 6719340544 6788612096 7679246336 7758413824 8721793024 9967763456 10288990208 11758845952 13438681088 13577224192 15358492672 15516827648 17443586048 19935526912 20577980416 23517691904 26877362176 27154448384 30716985344 31033655296 34887172096 41155960832 47035383808 53754724352 54308896768 61433970688 69774344192 82311921664 94070767616 107509448704 108617793536 139548688384 164623843328 188141535232 215018897408 217235587072 329247686656 376283070464 430037794816 658495373312 752566140928 1316990746624 1505132281856 2633981493248 3010264563712 5267962986496 10535925972992 21071851945984
• Sum of all divisors σ(n): 49982675948800
• Sum of proper divisors (its aliquot sum) s(n): 28910824002816
• 21071851945984 is an abundant number, because the sum of its proper divisors (28910824002816) is greater than itself. Its abundance is 7838972056832

Bases of 21071851945984

• Binary: 100110010101000101100010000000000000000000000₂
• Hexadecimal: 0x132A2C400000
• Base-36: 7GW9WL81S

Squares and roots of 21071851945984

• 21071851945984 squared (21071851945984²) is 444022944433469687653728256
• 21071851945984 cubed (21071851945984³) is 9356385745721953738207290410346326523904
• The square root of 21071851945984 is 4590408.6905180893
• The cube root of 21071851945984 is 27620.6716705277

Scales and comparisons

• 21,071,851,945,984 seconds is equal to 670,019 years, 37 weeks, 7 hours, 13 minutes, 4 seconds.
• To count from 1 to 21,071,851,945,984 would take you about one million, six hundred seventy-five thousand and forty-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 21071851945984 cubic inches would be around 2301.7 feet tall.

Recreational maths with 21071851945984

• 21071851945984 backwards is 48954915817012
• 21071851945984 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 21071851945984's digits is 64
• More coming soon!