21448646128728

Names of 21448646128728

• Cardinal: 21448646128728 can be written as Twenty-one trillion, four hundred forty-eight billion, six hundred forty-six million, one hundred twenty-eight thousand, seven hundred twenty-eight.

Scientific notation

• Scientific notation: 2.1448646128728 × 10¹³

Factors of 21448646128728

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 16326

Divisors of 21448646128728

• Number of divisors d(n): 512
• Complete list of divisors:
  1 2 3 4 6 7 8 9 12 13 14 18 21 24 26 27 28 36 39 42 52 54 56 63 72 78 84 91 104 108 117 126 156 168 182 189 193 216 234 252 273 312 351 359 364 378 386 468 504 546 579 702 718 728 756 772 819 936 1077 1092 1158 1351 1404 1436 1512 1544 1638 1737 2154 2184 2316 2457 2509 2513 2702 2808 2872 3231 3276 3474 4053 4308 4632 4667 4914 5018 5026 5211 5404 6462 6552 6948 7527 7539 8106 8616 9334 9693 9828 10036 10052 10422 10808 12159 12924 13896 14001 15054 15078 15749 16212 17563 18668 19386 19656 20072 20104 20844 22581 22617 24318 25848 28002 30108 30156 31498 32424 32669 35126 36477 37336 38772 41688 42003 45162 45234 47247 48636 52689 56004 60216 60312 62996 65338 67743 67851 69287 70252 72954 77544 84006 90324 90468 94494 97272 98007 105378 110243 112008 125992 126009 130676 135486 135702 138574 140504 141741 145908 158067 168012 180648 180936 188988 196014 204737 207861 210756 220486 252018 261352 270972 271404 277148 283482 291816 294021 316134 330729 336024 377976 392028 409474 415722 421512 425223 440972 474201 485009 504036 541944 542808 554296 566964 588042 614211 623583 632268 661458 784056 818948 831444 850446 881944 882063 900731 948402 970018 992187 1008072 1133928 1176084 1228422 1247166 1264536 1322916 1433159 1455027 1637896 1662888 1700892 1764126 1801462 1842633 1870749 1896804 1940036 1984374 2352168 2456844 2494332 2645832 2702193 2866318 2910054 2976561 3039557 3401784 3528252 3602924 3685266 3741498 3793608 3880072 3968748 4299477 4365081 4913688 4988664 5404386 5527899 5653891 5732636 5820108 5953122 6079114 6305117 7056504 7205848 7370532 7482996 7937496 8106579 8598954 8730162 9118671 10808772 11055798 11307782 11465272 11640216 11906244 12158228 12610234 12898431 13095243 14741064 14965992 16213158 16961673 17197908 17460324 18237342 18915351 21276899 21617544 22111596 22615564 23812488 24316456 24319737 25220468 25796862 26190486 27356013 32426316 33923346 34395816 34920648 36474684 37830702 38695293 39514241 39577237 42553798 44223192 45231128 48639474 50440936 50885019 51593724 52380972 54712026 56746053 63830697 64852632 67846692 72949368 73500583 75661404 77390586 79028482 79154474 82068039 85107596 97278948 101770038 103187448 104761944 109424052 113492106 118542723 118731711 127661394 135693384 147001166 151322808 152655057 154781172 158056964 158308948 164136078 170215192 170238159 191492091 194557896 203540076 218848104 220501749 226984212 237085446 237463422 255322788 276599687 294002332 305310114 309562344 316113928 316617896 328272156 340476318 355628169 356195133 382984182 407080152 441003498 453968424 474170892 474926844 510645576 514504081 553199374 574476273 588004664 610620228 656544312 661505247 680952636 711256338 712390266 765968364 829799061 882006996 948341784 949853688 1029008162 1066884507 1068585399 1091200963 1106398748 1148952546 1221240456 1323010494 1361905272 1422512676 1424780532 1531936728 1543512243 1659598122 1764013992 1984515741 2058016324 2133769014 2137170798 2182401926 2212797496 2297905092 2489397183 2646020988 2845025352 2849561064 3087024486 3273602889 3319196244 3969031482 4116032648 4267538028 4274341596 4364803852 4595810184 4630536729 4978794366 5292041976 6174048972 6547205778 6638392488 7468191549 7638406741 7938062964 8535076056 8548683192 8729607704 9261073458 9820808667 9957588732 12348097944 13094411556 13891610187 14185612519 14936383098 15276813482 15876125928 18522146916 19641617334 19915177464 22915220223 26188823112 27783220374 28371225038 29462426001 29872766196 30553626964 37044293832 39283234668 42556837557 45830440446 55566440748 56742450076 58924852002 59745532392 61107253928 68745660669 78566469336 85113675114 91660880892 99299287633 111132881496 113484900152 117849704004 127670512671 137491321338 170227350228 183321761784 198598575266 206236982007 235699408008 255341025342 274982642676 297897862899 340454700456 383011538013 397197150532 412473964014 510682050684 549965285352 595795725798 766023076026 794394301064 824947928028 893693588697 1021364101368 1191591451596 1532046152052 1649895856056 1787387177394 2383182903192 2681080766091 3064092304104 3574774354788 5362161532182 7149548709576 10724323064364 21448646128728
• Sum of all divisors σ(n): 73918656000000
• Sum of proper divisors (its aliquot sum) s(n): 52470009871272
• 21448646128728 is an abundant number, because the sum of its proper divisors (52470009871272) is greater than itself. Its abundance is 31021363742544

Bases of 21448646128728

• Binary: 100111000000111100110111011101111010001011000₂
• Hexadecimal: 0x1381E6EEF458
• Base-36: 7LPDE4860

Squares and roots of 21448646128728

• 21448646128728 squared (21448646128728²) is 460044420755398621146897984
• 21448646128728 cubed (21448646128728³) is 9867329984278195808868882559927547684352
• The square root of 21448646128728 is 4631268.3067090815
• The cube root of 21448646128728 is 27784.3320994785

Scales and comparisons

• 21,448,646,128,728 seconds is equal to 682,000 years, 31 weeks, 2 days, 1 hour, 58 minutes, 48 seconds.
• To count from 1 to 21,448,646,128,728 would take you about one million, seven hundred five thousand and one 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 21448646128728 cubic inches would be around 2315.4 feet tall.

Recreational maths with 21448646128728

• 21448646128728 backwards is 82782164684412
• 21448646128728 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 21448646128728's digits is 63
• More coming soon!