218397935493607728

Names of 218397935493607728

• Cardinal: 218397935493607728 can be written as Two hundred eighteen quadrillion, three hundred ninety-seven trillion, nine hundred thirty-five billion, four hundred ninety-three million, six hundred seven thousand, seven hundred twenty-eight.

Scientific notation

• Scientific notation: 2.18397935493607728 × 10¹⁷

Factors of 218397935493607728

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 239

Divisors of 218397935493607728

• Number of divisors d(n): 250
• Complete list of divisors:
  1 2 3 4 6 8 12 16 24 43 48 86 129 172 191 258 344 382 516 573 688 764 1032 1146 1528 1849 2064 2292 3056 3698 4584 5547 7396 8213 9168 11094 14792 16426 22188 24639 29584 32852 36481 44376 49278 65704 72962 79507 88752 98556 109443 131408 145924 159014 197112 218886 238521 291848 318028 353159 394224 437772 477042 583696 636056 706318 875544 954084 1059477 1272112 1412636 1568683 1751088 1908168 2118954 2825272 3137366 3418801 3816336 4237908 4706049 5650544 6274732 6837602 6967871 8475816 9412098 10256403 12549464 13675204 13935742 15185837 16951632 18824196 20512806 20903613 25098928 27350408 27871484 30371674 37648392 41025612 41807226 45557511 54700816 55742968 60743348 67453369 75296784 82051224 83614452 91115022 111485936 121486696 134906738 164102448 167228904 182230044 202360107 242973392 269813476 299618453 334457808 364460088 404720214 539626952 599236906 652990991 728920176 809440428 898855359 1079253904 1198473812 1305981982 1330863361 1618880856 1797710718 1958972973 2396947624 2611963964 2661726722 2900494867 3237761712 3595421436 3917945946 3992590083 4793895248 5223927928 5323453444 5800989734 7190842872 7835891892 7985180166 8701484601 10447855856 10646906888 11601979468 12883593479 14381685744 15671783784 15970360332 17402969202 21293813776 23203958936 25767186958 31343567568 31940720664 34805938404 38650780437 46407917872 51534373916 57227124523 63881441328 69611876808 77301560874 103068747832 114454249046 124721279281 139223753616 154603121748 171681373569 206137495664 228908498092 249442558562 309206243496 343362747138 374163837843 457816996184 498885117124 553994519597 618412486992 686725494276 748327675686 915633992368 997770234248 1107989039194 1373450988552 1496655351372 1661983558791 1995540468496 2215978078388 2460766354489 2746901977104 2993310702744 3323967117582 4431956156776 4921532708978 5986621405488 6647934235164 7382299063467 8863912313552 9843065417956 13295868470328 14764598126934 19686130835912 23821764342671 26591736940656 29529196253868 39372261671824 47643528685342 59058392507736 71465293028013 95287057370684 105812953243027 118116785015472 142930586056026 190574114741368 211625906486054 285861172112052 317438859729081 381148229482736 423251812972108 571722344224104 634877719458162 846503625944216 1143444688448208 1269755438916324 1693007251888432 2539510877832648 4549956989450161 5079021755665296 9099913978900322 13649870968350483 18199827957800644 27299741936700966 36399655915601288 54599483873401932 72799311831202576 109198967746803864 218397935493607728
• Sum of all divisors σ(n): 580668015789664220
• Sum of proper divisors (its aliquot sum) s(n): 362270080296056492
• 218397935493607728 is an abundant number, because the sum of its proper divisors (362270080296056492) is greater than itself. Its abundance is 143872144802448764

Bases of 218397935493607728

• Binary: 1100000111111001111100001111100100110001100111000100110000₂
• Hexadecimal: 0x307E7C3E4C67130
• Base-36: 1NQFLUHHAV5C

Squares and roots of 218397935493607728

• 218397935493607728 squared (218397935493607728²) is 47697658227870042234131949141321984
• 218397935493607728 cubed (218397935493607728³) is 10417070084846509381076642036443659943562535438692352
• The square root of 218397935493607728 is 467330648.9987658919
• The cube root of 218397935493607728 is 602212.1446455675

Scales and comparisons

• 218,397,935,493,607,728 seconds is equal to 6,944,378,799 years, 27 weeks, 2 days, 20 hours, 48 minutes, 48 seconds.
• To count from 1 to 218,397,935,493,607,728 would take you about twenty billion, eight hundred thirty-three million, one hundred thirty-six thousand, three hundred ninety-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 218397935493607728 cubic inches would be around 50184.3 feet tall.

Recreational maths with 218397935493607728

• 218397935493607728 backwards is 827706394539793812
• The number of decimal digits it has is: 18
• The sum of 218397935493607728's digits is 93
• More coming soon!