21065290272

Names of 21065290272

• Cardinal: 21065290272 can be written as Twenty-one billion, sixty-five million, two hundred ninety thousand, two hundred seventy-two.

Scientific notation

• Scientific notation: 2.1065290272 × 10¹⁰

Factors of 21065290272

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 2568

Divisors of 21065290272

• Number of divisors d(n): 360
• Complete list of divisors:
  1 2 3 4 6 8 9 12 13 16 18 19 24 26 27 32 36 38 39 48 52 54 57 72 76 78 81 96 104 108 114 117 144 152 156 162 169 171 208 216 228 234 247 288 304 312 324 338 342 351 416 432 456 468 494 507 513 608 624 648 676 684 702 741 864 912 936 988 1014 1026 1053 1248 1296 1352 1368 1404 1482 1521 1539 1824 1872 1976 2028 2052 2106 2223 2531 2592 2704 2736 2808 2964 3042 3078 3211 3744 3952 4056 4104 4212 4446 4563 5062 5408 5472 5616 5928 6084 6156 6422 6669 7593 7904 8112 8208 8424 8892 9126 9633 10124 11232 11856 12168 12312 12844 13338 13689 15186 16224 16416 16848 17784 18252 19266 20007 20248 22779 23712 24336 24624 25688 26676 27378 28899 30372 32903 33696 35568 36504 38532 40014 40496 45558 48089 48672 49248 51376 53352 54756 57798 60744 65806 68337 71136 73008 77064 80028 80992 86697 91116 96178 98709 102752 106704 109512 115596 121488 131612 136674 144267 146016 154128 160056 173394 182232 192356 197418 205011 213408 219024 231192 242976 260091 263224 273348 288534 296127 308256 320112 346788 364464 384712 394836 410022 427739 432801 438048 462384 520182 526448 546696 577068 592254 625157 640224 693576 728928 769424 789672 820044 855478 865602 888381 924768 1040364 1052896 1093392 1154136 1184508 1250314 1283217 1298403 1387152 1538848 1579344 1640088 1710956 1731204 1776762 1875471 2080728 2186784 2308272 2369016 2500628 2566434 2596806 2665143 2774304 3158688 3280176 3421912 3462408 3553524 3750942 3849651 3895209 4161456 4616544 4738032 5001256 5132868 5193612 5330286 5626413 6560352 6843824 6924816 7107048 7501884 7699302 7790418 8127041 8322912 9476064 10002512 10265736 10387224 10660572 11252826 11548953 13687648 13849632 14214096 15003768 15398604 15580836 16254082 16879239 20005024 20531472 20774448 21321144 22505652 23097906 24381123 28428192 30007536 30797208 31161672 32508164 33758478 34646859 41062944 41548896 42642288 45011304 46195812 48762246 50637717 60015072 61594416 62323344 65016328 67516956 69293718 73143369 85284576 90022608 92391624 97524492 101275434 123188832 124646688 130032656 135033912 138587436 146286738 180045216 184783248 195048984 202550868 219430107 260065312 270067824 277174872 292573476 369566496 390097968 405101736 438860214 540135648 554349744 585146952 658290321 780195936 810203472 877720428 1108699488 1170293904 1316580642 1620406944 1755440856 2340587808 2633161284 3510881712 5266322568 7021763424 10532645136 21065290272
• Sum of all divisors σ(n): 70643255760
• Sum of proper divisors (its aliquot sum) s(n): 49577965488
• 21065290272 is an abundant number, because the sum of its proper divisors (49577965488) is greater than itself. Its abundance is 28512675216

Bases of 21065290272

• Binary: 10011100111100101101101001000100000₂
• Hexadecimal: 0x4E796D220
• Base-36: 9ODQA00

Squares and roots of 21065290272

• 21065290272 squared (21065290272²) is 443746454243617833984
• 21065290272 cubed (21065290272³) is 9347647865812575876308866203648
• The square root of 21065290272 is 145138.8654771699
• The cube root of 21065290272 is 2761.7804391173

Scales and comparisons

• 21,065,290,272 seconds is equal to 669 years, 42 weeks, 1 day, 5 hours, 31 minutes, 12 seconds.
• To count from 1 to 21,065,290,272 would take you about one thousand, three hundred thirty-nine 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 21065290272 cubic inches would be around 230.1 feet tall.

Recreational maths with 21065290272

• 21065290272 backwards is 27209256012
• 21065290272 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21065290272's digits is 36
• More coming soon!