21921019380

Names of 21921019380

• Cardinal: 21921019380 can be written as Twenty-one billion, nine hundred twenty-one million, nineteen thousand, three hundred eighty.

Scientific notation

• Scientific notation: 2.192101938 × 10¹⁰

Factors of 21921019380

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 3178

Divisors of 21921019380

• Number of divisors d(n): 288
• Complete list of divisors:
  1 2 3 4 5 6 9 10 12 13 15 18 20 26 29 30 36 39 45 52 58 60 65 78 87 90 107 116 117 130 145 156 174 180 195 214 234 260 261 290 321 348 377 390 428 435 468 522 535 580 585 642 754 780 870 963 1044 1070 1131 1170 1284 1305 1391 1508 1605 1740 1885 1926 2140 2262 2340 2610 2782 3019 3103 3210 3393 3770 3852 4173 4524 4815 5220 5564 5655 6038 6206 6420 6786 6955 7540 8346 9057 9309 9630 11310 12076 12412 12519 13572 13910 15095 15515 16692 16965 18114 18618 19260 20865 22620 25038 27171 27820 27927 30190 31030 33930 36228 37236 39247 40339 41730 45285 46545 50076 54342 55854 60380 62060 62595 67860 78494 80678 83460 87551 90570 93090 108684 111708 117741 121017 125190 135855 139635 156988 161356 175102 181140 186180 196235 201695 235482 242034 250380 262653 271710 279270 323033 350204 353223 363051 392470 403390 437755 470964 484068 525306 543420 558540 588705 605085 646066 706446 726102 784940 787959 806780 875510 969099 1050612 1138163 1177410 1210170 1292132 1313265 1412892 1452204 1575918 1615165 1751020 1766115 1815255 1938198 2276326 2354820 2420340 2626530 2907297 3151836 3230330 3414489 3532230 3630510 3876396 3939795 4199429 4552652 4845495 5253060 5690815 5814594 6460660 6828978 7064460 7261020 7879590 8398858 9367957 9690990 10243467 11381630 11629188 12598287 13657956 14536485 15759180 16797716 17072445 18735914 19381980 20486934 20997145 22763260 25196574 28103871 29072970 34144890 37471828 37794861 40973868 41994290 46839785 50393148 51217335 56207742 58145940 62991435 68289780 75589722 83988580 84311613 93679570 102434670 112415484 121783441 125982870 140519355 151179444 168623226 187359140 188974305 204869340 243566882 251965740 281038710 337246452 365350323 377948610 421558065 487133764 562077420 608917205 730700646 755897220 843116130 1096050969 1217834410 1461401292 1686232260 1826751615 2192101938 2435668820 3653503230 4384203876 5480254845 7307006460 10960509690 21921019380
• Sum of all divisors σ(n): 74795011200
• Sum of proper divisors (its aliquot sum) s(n): 52873991820
• 21921019380 is an abundant number, because the sum of its proper divisors (52873991820) is greater than itself. Its abundance is 30952972440

Bases of 21921019380

• Binary: 10100011010100110000011010111110100₂
• Hexadecimal: 0x51A9835F4
• Base-36: A2J7IT0

Squares and roots of 21921019380

• 21921019380 squared (21921019380²) is 480531090658335584400
• 21921019380 cubed (21921019380³) is 10533731351013911304176025672000
• The square root of 21921019380 is 148057.4867407927
• The cube root of 21921019380 is 2798.6821766309

Scales and comparisons

• 21,921,019,380 seconds is equal to 697 years, 1 week, 12 hours, 3 minutes.
• To count from 1 to 21,921,019,380 would take you about one thousand, three hundred ninety-four 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 21921019380 cubic inches would be around 233.2 feet tall.

Recreational maths with 21921019380

• 21921019380 backwards is 08391012912
• 21921019380 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21921019380's digits is 36
• More coming soon!