20728238784

Names of 20728238784

• Cardinal: 20728238784 can be written as Twenty billion, seven hundred twenty-eight million, two hundred thirty-eight thousand, seven hundred eighty-four.

Scientific notation

• Scientific notation: 2.0728238784 × 10¹⁰

Factors of 20728238784

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 943

Divisors of 20728238784

• Number of divisors d(n): 336
• Complete list of divisors:
  1 2 3 4 6 8 11 12 16 19 22 24 31 32 33 38 44 48 57 62 64 66 76 88 93 96 114 124 132 152 176 186 192 209 228 248 264 304 341 352 361 372 418 456 496 528 589 608 627 682 704 722 744 836 877 912 992 1023 1056 1083 1178 1216 1254 1364 1444 1488 1672 1754 1767 1824 1984 2046 2112 2166 2356 2508 2631 2728 2888 2976 3344 3508 3534 3648 3971 4092 4332 4712 5016 5262 5456 5776 5952 6479 6688 7016 7068 7942 8184 8664 9424 9647 10032 10524 10912 11191 11552 11913 12958 13376 14032 14136 15884 16368 16663 17328 18848 19294 19437 20064 21048 21824 22382 23104 23826 25916 27187 28064 28272 28941 31768 32736 33326 33573 34656 37696 38588 38874 40128 42096 44764 47652 49989 51832 54374 56128 56544 57882 63536 65472 66652 67146 69312 77176 77748 81561 84192 89528 95304 99978 103664 108748 113088 115764 123101 127072 133304 134292 154352 155496 163122 168384 179056 183293 190608 199956 207328 217496 231528 246202 254144 266608 268584 299057 308704 310992 316597 326244 358112 366586 369303 381216 399912 414656 434992 463056 492404 516553 533216 537168 549879 598114 617408 621984 633194 652488 716224 733172 738606 762432 799824 869984 897171 926112 949791 984808 1033106 1066432 1074336 1099758 1196228 1243968 1266388 1304976 1466344 1477212 1549659 1599648 1739968 1794342 1852224 1899582 1969616 2066212 2148672 2199516 2392456 2532776 2609952 2932688 2954424 3099318 3199296 3482567 3588684 3799164 3939232 4132424 4399032 4784912 5065552 5219904 5682083 5865376 5908848 6198636 6965134 7177368 7598328 7878464 8264848 8798064 9569824 9814507 10131104 10447701 11364166 11730752 11817696 12397272 13930268 14354736 15196656 16529696 17046249 17596128 19139648 19629014 20262208 20895402 22728332 23635392 24794544 27860536 28709472 29443521 30393312 33059392 34092498 35192256 39258028 41790804 45456664 49589088 55721072 57418944 58887042 60786624 68184996 78516056 83581608 90913328 99178176 107959577 111442144 117774084 136369992 157032112 167163216 181826656 215919154 222884288 235548168 272739984 314064224 323878731 334326432 363653312 431838308 471096336 545479968 628128448 647757462 668652864 863676616 942192672 1090959936 1295514924 1727353232 1884385344 2591029848 3454706464 5182059696 6909412928 10364119392 20728238784
• Sum of all divisors σ(n): 65255095296
• Sum of proper divisors (its aliquot sum) s(n): 44526856512
• 20728238784 is an abundant number, because the sum of its proper divisors (44526856512) is greater than itself. Its abundance is 23798617728

Bases of 20728238784

• Binary: 10011010011011111111101001011000000₂
• Hexadecimal: 0x4D37FD2C0
• Base-36: 9IT23EO

Squares and roots of 20728238784

• 20728238784 squared (20728238784²) is 429659883086521798656
• 20728238784 cubed (20728238784³) is 8906092652522946774562738274304
• The square root of 20728238784 is 143973.0488112271
• The cube root of 20728238784 is 2746.9713779937

Scales and comparisons

• 20,728,238,784 seconds is equal to 659 years, 4 weeks, 6 days, 4 hours, 6 minutes, 24 seconds.
• To count from 1 to 20,728,238,784 would take you about one thousand, three hundred eighteen 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 20728238784 cubic inches would be around 228.9 feet tall.

Recreational maths with 20728238784

• 20728238784 backwards is 48783282702
• The number of decimal digits it has is: 11
• The sum of 20728238784's digits is 51
• More coming soon!