21307731945909123

Names of 21307731945909123

• Cardinal: 21307731945909123 can be written as Twenty-one quadrillion, three hundred seven trillion, seven hundred thirty-one billion, nine hundred forty-five million, nine hundred nine thousand, one hundred twenty-three.

Scientific notation

• Scientific notation: 2.1307731945909123 × 10¹⁶

Factors of 21307731945909123

• Number of distinct prime factors ω(n): 8
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 5154

Divisors of 21307731945909123

• Number of divisors d(n): 256
• Complete list of divisors:
  1 3 11 13 33 39 143 197 283 367 429 591 673 849 1101 2019 2167 2561 3113 3607 3679 4037 4771 6501 7403 7683 8749 9339 10821 11037 12111 14313 22209 26247 28171 39677 40469 46891 52481 55751 72299 84513 96239 103861 119031 121407 132581 140673 157443 167253 190459 216897 246991 288717 311583 397743 515801 571377 613261 710579 724763 740973 795289 939887 1020781 1142471 1323769 1350193 1458391 1547403 1723553 1839783 2095049 2131737 2174289 2385867 2427511 2475967 2716901 2819661 3062343 3210883 3427413 3971307 4050579 4375173 5170659 6285147 7282533 7427901 7816369 7972393 8150703 9237527 9632649 10338757 11228591 13270153 14561459 14852123 17208997 18959083 20460617 23449107 23917179 26702621 27235637 27712581 31016271 31557643 33685773 35319713 37520423 39810459 43684377 44556369 48657227 51626991 56877249 61381851 69898453 80107863 81706911 94672929 101612797 105959139 112561269 145971681 145971683 189298967 201093857 209695359 225066787 260782493 265988021 304838391 347134073 374626627 412724653 437915049 478219667 487765499 535229497 567896901 603281571 632543951 675200361 686985613 768882983 782347479 797964063 890896537 908679889 1041402219 1123879881 1238173959 1434659001 1463296497 1605688491 1897631853 2060956839 2212032427 2306648949 2614220141 2672689611 2726039667 2868607423 2925868231 3390172409 4120892897 4870146151 5260416337 5365420489 6216855671 6636097281 6957983461 7556841743 7842660423 8605822269 8777604693 8930812969 9799861907 9995478779 10170517227 11581654981 12362678691 13769995241 14610438453 15781249011 16096261467 18650567013 20873950383 22670525229 26792438907 28756421551 29399585721 29986436337 34744964943 37291896499 41309985723 53571607661 68385412381 73801445519 86269264653 98238942659 111875689497 127398204791 135336165761 151469947651 160714822983 175506617789 179009938133 205156237143 221404336557 252123719971 294716827977 382194614373 406008497283 454409842953 526519853367 537029814399 756371159913 811815900709 959418791747 1488697823371 1759370154893 1930572795679 1969109319463 2281586031257 2435447702127 2773360919681 2878256375241 3277608359623 4466093470113 5278110464679 5791718387037 5907327958389 6844758093771 8320082759043 9832825078869 10553606709217 19353071703823 25097446343827 31660820127651 36053691955853 49668372834287 58059215111469 75292339031481 108161075867559 149005118502861 546352101177157 645688846845731 1639056303531471 1937066540537193 7102577315303041 21307731945909123
• Sum of all divisors σ(n): 33816374732980224
• Sum of proper divisors (its aliquot sum) s(n): 12508642787071101
• 21307731945909123 is a deficient number, because the sum of its proper divisors (12508642787071101) is less than itself. Its deficiency is 8799089158838022

Bases of 21307731945909123

• Binary: 1001011101100110100010011110001100110101110101110000011₂
• Hexadecimal: 0x4BB344F19AEB83
• Base-36: 5TSYKX79B43

Squares and roots of 21307731945909123

• 21307731945909123 squared (21307731945909123²) is 454019440678716181403894974629129
• 21307731945909123 cubed (21307731945909123³) is 9674124540213672776056344389316509731845662643867
• The square root of 21307731945909123 is 145971681.9999999965
• The cube root of 21307731945909123 is 277233.5215144003

Scales and comparisons

• 21,307,731,945,909,123 seconds is equal to 677,519,966 years, 38 weeks, 2 days, 11 hours, 12 minutes, 3 seconds.
• To count from 1 to 21,307,731,945,909,123 would take you about two billion, thirty-two million, five hundred fifty-nine thousand, nine hundred 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 21307731945909123 cubic inches would be around 23102.8 feet tall.

Recreational maths with 21307731945909123

• 21307731945909123 backwards is 32190954913770312
• The number of decimal digits it has is: 17
• The sum of 21307731945909123's digits is 66
• More coming soon!