21204394423740

Names of 21204394423740

• Cardinal: 21204394423740 can be written as Twenty-one trillion, two hundred four billion, three hundred ninety-four million, four hundred twenty-three thousand, seven hundred forty.

Scientific notation

• Scientific notation: 2.120439442374 × 10¹³

Factors of 21204394423740

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 461002

Divisors of 21204394423740

• Number of divisors d(n): 384
• Complete list of divisors:
  1 2 3 4 5 6 9 10 11 12 15 18 20 22 27 30 33 36 44 45 54 55 60 61 66 90 99 108 110 122 127 132 135 165 180 183 198 220 244 254 270 297 305 330 366 381 396 495 508 540 549 594 610 635 660 671 732 762 915 990 1098 1143 1188 1220 1270 1342 1397 1485 1524 1647 1830 1905 1980 2013 2196 2286 2540 2684 2745 2794 2970 3294 3355 3429 3660 3810 4026 4191 4572 5490 5588 5715 5940 6039 6588 6710 6858 6985 7620 7747 8052 8235 8382 10065 10980 11430 12078 12573 13420 13716 13970 15494 16470 16764 17145 18117 20130 20955 22860 23241 24156 25146 27940 30195 30988 32940 34290 36234 37719 38735 40260 41910 46482 50292 60390 62865 68580 69723 72468 75438 77470 83820 85217 90585 92964 116205 120780 125730 139446 150876 154940 170434 181170 188595 209169 232410 251460 255651 278892 340868 348615 362340 377190 418338 426085 460793 464820 511302 697230 754380 766953 836676 852170 921586 1022604 1045845 1278255 1382379 1394460 1533906 1704340 1843172 2091690 2300859 2303965 2556510 2764758 3067812 3834765 4147137 4183380 4601718 4607930 5068723 5113020 5529516 6911895 7669530 8294274 9203436 9215860 10137446 11504295 12441411 13823790 15206169 15339060 16588548 20274892 20735685 23008590 24882822 25343615 27647580 28108373 30412338 41471370 45618507 46017180 49765644 50687230 56216746 58520711 60824676 62207055 76030845 82942740 84325119 91237014 101374460 112433492 117041422 124414110 136855521 140541865 152061690 168650238 175562133 182474028 228092535 234082844 248828220 252975357 273711042 281083730 292603555 304123380 309192103 337300476 351124266 421625595 456185070 505950714 526686399 547422084 562167460 585207110 618384206 643727821 684277605 702248532 758926071 843251190 877810665 912370140 927576309 1011901428 1053372798 1170414220 1236768412 1264876785 1287455642 1368555210 1517852142 1545960515 1580059197 1686502380 1755621330 1855152618 1931183463 2106745596 2529753570 2574911284 2633431995 2737110420 2782728927 3035704284 3091921030 3160118394 3218639105 3511242660 3569763371 3710305236 3794630355 3862366926 4637881545 5059507140 5266863990 5565457854 5793550389 6183842060 6320236788 6437278210 7139526742 7589260710 7724733852 7900295985 8348186781 9275763090 9655917315 10533727980 10709290113 11130915708 11587100778 12874556420 13913644635 14279053484 15178521420 15800591970 16696373562 17380651167 17848816855 18551526180 19311834630 21418580226 23174201556 27827289270 28967751945 31601183940 32127870339 33392747124 34761302334 35697633710 38623669260 39267397081 41740933905 42837160452 53546450565 55654578540 57935503890 64255740678 69522604668 71395267420 78534794162 83481867810 86903255835 96383611017 107092901130 115871007780 117802191243 128511481356 157069588324 160639351695 166963735620 173806511670 192767222034 196336985405 214185802260 235604382486 321278703390 347613023340 353406573729 385534444068 392673970810 471208764972 481918055085 589010956215 642557406780 706813147458 785347941620 963836110170 1060219721187 1178021912430 1413626294916 1767032868645 1927672220340 2120439442374 2356043824860 3534065737290 4240878884748 5301098605935 7068131474580 10602197211870 21204394423740
• Sum of all divisors σ(n): 73722321469440
• Sum of proper divisors (its aliquot sum) s(n): 52517927045700
• 21204394423740 is an abundant number, because the sum of its proper divisors (52517927045700) is greater than itself. Its abundance is 31313532621960

Bases of 21204394423740

• Binary: 100110100100100001000011001011011010110111100₂
• Hexadecimal: 0x13490865B5BC
• Base-36: 7IL5WYIF0

Squares and roots of 21204394423740

• 21204394423740 squared (21204394423740²) is 449626342877536006675587600
• 21204394423740 cubed (21204394423740³) is 9534054317679033765662897120627889624000
• The square root of 21204394423740 is 4604822.9524857957
• The cube root of 21204394423740 is 27678.4622440555

Scales and comparisons

• 21,204,394,423,740 seconds is equal to 674,234 years, 7 weeks, 6 days, 18 hours, 9 minutes.
• To count from 1 to 21,204,394,423,740 would take you about one million, six hundred eighty-five thousand, five hundred eighty-five 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 21204394423740 cubic inches would be around 2306.5 feet tall.

Recreational maths with 21204394423740

• 21204394423740 backwards is 04732449340212
• 21204394423740 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 21204394423740's digits is 45
• More coming soon!