28878934248521728

Names of 28878934248521728

• Cardinal: 28878934248521728 can be written as Twenty-eight quadrillion, eight hundred seventy-eight trillion, nine hundred thirty-four billion, two hundred forty-eight million, five hundred twenty-one thousand, seven hundred twenty-eight.

Scientific notation

• Scientific notation: 2.8878934248521728 × 10¹⁶

Factors of 28878934248521728

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 28
• Sum of prime factors: 188

Divisors of 28878934248521728

• Number of divisors d(n): 440
• Complete list of divisors:
  1 2 4 7 8 14 16 28 32 49 56 64 98 112 128 179 196 224 256 343 358 392 448 512 686 716 784 896 1024 1253 1372 1432 1568 1792 2048 2401 2506 2744 2864 3136 3584 4096 4802 5012 5488 5728 6272 7168 8192 8771 9604 10024 10976 11456 12544 14336 16384 17542 19208 20048 21952 22912 25088 28672 32041 32768 35084 38416 40096 43904 45824 50176 57344 61397 64082 65536 70168 76832 80192 87808 91648 100352 114688 122794 128164 131072 140336 153664 160384 175616 183296 200704 224287 229376 245588 256328 262144 280672 307328 320768 351232 366592 401408 429779 448574 458752 491176 512656 524288 561344 614656 641536 702464 733184 802816 859558 897148 917504 982352 1025312 1048576 1122688 1229312 1283072 1404928 1466368 1570009 1605632 1719116 1794296 1835008 1964704 2050624 2097152 2245376 2458624 2566144 2809856 2932736 3140018 3211264 3438232 3588592 3670016 3929408 4101248 4490752 4917248 5132288 5619712 5735339 5865472 6280036 6422528 6876464 7177184 7340032 7858816 8202496 8981504 9834496 10264576 10990063 11239424 11470678 11730944 12560072 12845056 13752928 14354368 14680064 15717632 16404992 17963008 19668992 20529152 21980126 22478848 22941356 23461888 25120144 25690112 27505856 28708736 31435264 32809984 35926016 39337984 40147373 41058304 43960252 44957696 45882712 46923776 50240288 51380224 55011712 57417472 62870528 65619968 71852032 76930441 78675968 80294746 82116608 87920504 89915392 91765424 93847552 100480576 102760448 110023424 114834944 125741056 131239936 143704064 153860882 157351936 160589492 164233216 175841008 179830784 183530848 187695104 200961152 220046848 229669888 251482112 262479872 281031611 287408128 307721764 314703872 321178984 328466432 351682016 359661568 367061696 375390208 401922304 440093696 459339776 502964224 524959744 562063222 574816256 615443528 629407744 642357968 656932864 703364032 719323136 734123392 803844608 880187392 918679552 1005928448 1049919488 1124126444 1149632512 1230887056 1258815488 1284715936 1313865728 1406728064 1468246784 1607689216 1760374784 1837359104 1967221277 2011856896 2099838976 2248252888 2299265024 2461774112 2517630976 2569431872 2627731456 2813456128 2936493568 3215378432 3520749568 3674718208 3934442554 4023713792 4199677952 4496505776 4598530048 4923548224 5035261952 5138863744 5626912256 5872987136 6430756864 7041499136 7349436416 7868885108 8047427584 8399355904 8993011552 9197060096 9847096448 10277727488 11253824512 11745974272 12861513728 13770548939 14082998272 14698872832 15737770216 16094855168 16798711808 17986023104 18394120192 19694192896 20555454976 22507649024 23491948544 25723027456 27541097878 28165996544 29397745664 31475540432 32189710336 33597423616 35972046208 39388385792 41110909952 45015298048 46983897088 51446054912 55082195756 56331993088 58795491328 62951080864 64379420672 67194847232 71944092416 78776771584 82221819904 90030596096 93967794176 102892109824 110164391512 112663986176 117590982656 125902161728 128758841344 143888184832 157553543168 164443639808 180061192192 187935588352 205784219648 220328783024 225327972352 235181965312 251804323456 287776369664 315107086336 328887279616 360122384384 375871176704 411568439296 440657566048 450655944704 470363930624 503608646912 575552739328 630214172672 657774559232 720244768768 751742353408 823136878592 881315132096 901311889408 1007217293824 1151105478656 1260428345344 1315549118464 1440489537536 1503484706816 1646273757184 1762630264192 2014434587648 2302210957312 2520856690688 2631098236928 2880979075072 3006969413632 3292547514368 3525260528384 4028869175296 4604421914624 5041713381376 5262196473856 5761958150144 6013938827264 7050521056768 8057738350592 9208843829248 10083426762752 10524392947712 11523916300288 12027877654528 14101042113536 16115476701184 18417687658496 20166853525504 21048785895424 23047832600576 28202084227072 32230953402368 36835375316992 40333707051008 42097571790848 56404168454144 64461906804736 73670750633984 80667414102016 84195143581696 112808336908288 128923813609472 147341501267968 161334828204032 225616673816576 257847627218944 294683002535936 451233347633152 515695254437888 589366005071872 902466695266304 1031390508875776 1804933390532608 2062781017751552 3609866781065216 4125562035503104 7219733562130432 14439467124260864 28878934248521728
• Sum of all divisors σ(n): 67758694684114680
• Sum of proper divisors (its aliquot sum) s(n): 38879760435592952
• 28878934248521728 is an abundant number, because the sum of its proper divisors (38879760435592952) is greater than itself. Its abundance is 10000826187071224

Bases of 28878934248521728

• Binary: 1100110100110010011110011011001011000000000000000000000₂
• Hexadecimal: 0x66993CD9600000
• Base-36: 7WCQ78RL0CG

Squares and roots of 28878934248521728

• 28878934248521728 squared (28878934248521728²) is 833992843330441222718953288105984
• 28878934248521728 cubed (28878934248521728³) is 24084824486277494825894480228842826452436990820352
• The square root of 28878934248521728 is 169938030.6126963683
• The cube root of 28878934248521728 is 306803.5548177669

Scales and comparisons

• 28,878,934,248,521,728 seconds is equal to 918,260,780 years, 36 weeks, 16 hours, 55 minutes, 28 seconds.
• To count from 1 to 28,878,934,248,521,728 would take you about two billion, seven hundred fifty-four million, seven hundred eighty-two thousand, three hundred forty-two 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 28878934248521728 cubic inches would be around 25567 feet tall.

Recreational maths with 28878934248521728

• 28878934248521728 backwards is 82712584243987882
• The number of decimal digits it has is: 17
• The sum of 28878934248521728's digits is 88
• More coming soon!