21156720200

Names of 21156720200

• Cardinal: 21156720200 can be written as Twenty-one billion, one hundred fifty-six million, seven hundred twenty thousand, two hundred.

Scientific notation

• Scientific notation: 2.11567202 × 10¹⁰

Factors of 21156720200

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 101

Divisors of 21156720200

• Number of divisors d(n): 576
• Complete list of divisors:
  1 2 4 5 7 8 10 11 14 20 22 23 25 28 35 40 44 46 49 50 53 55 56 70 77 88 92 98 100 106 110 115 140 154 161 175 184 196 200 212 220 230 245 253 265 275 280 308 322 343 350 371 385 392 424 440 460 490 506 529 530 539 550 575 583 616 644 686 700 742 770 805 920 980 1012 1058 1060 1078 1100 1127 1150 1166 1219 1225 1265 1288 1325 1372 1400 1484 1540 1610 1715 1771 1855 1925 1960 2024 2116 2120 2156 2200 2254 2300 2332 2438 2450 2530 2597 2645 2650 2695 2744 2915 2968 3080 3220 3430 3542 3703 3710 3773 3850 4025 4081 4232 4312 4508 4600 4664 4876 4900 5060 5194 5290 5300 5390 5635 5819 5830 6095 6325 6440 6860 7084 7406 7420 7546 7700 7889 8050 8162 8533 8575 8855 9016 9275 9752 9800 10120 10388 10580 10600 10780 11270 11638 11660 12190 12397 12650 12985 13225 13409 13475 13720 14168 14575 14812 14840 15092 15400 15778 16100 16324 17066 17150 17710 18179 18515 18550 18865 20405 20776 21160 21560 22540 23276 23320 24380 24794 25300 25921 25970 26450 26818 26950 28037 28175 28567 29095 29150 29624 30184 30475 31556 32200 32648 34132 34300 35420 36358 37030 37100 37730 39445 40733 40810 42665 44275 45080 46552 48760 49588 50600 51842 51940 52900 53636 53900 56074 56350 57134 58190 58300 59731 60950 61985 63112 64925 67045 68264 68600 70840 72716 74060 74200 75460 78890 81466 81620 85330 86779 88550 90895 92575 93863 94325 99176 102025 103684 103880 105800 107272 107800 112148 112700 114268 116380 116600 119462 121900 123970 129605 129850 134090 140185 142835 145432 145475 148120 150920 157780 162932 163240 170660 173558 177100 181447 181790 185150 187726 188650 196259 197225 199969 203665 204050 207368 213325 224296 225400 228536 232760 238924 243800 247940 259210 259700 268180 280370 285131 285670 290950 298655 308407 309925 315560 325864 335225 341320 347116 354200 362894 363580 370300 375452 377300 392518 394450 399938 407330 408100 418117 426650 433895 454475 469315 477848 495880 518420 519400 536360 560740 570262 571340 581900 597310 616814 619850 648025 657041 670450 694232 700925 714175 725788 727160 740600 750904 754600 785036 788900 799876 814660 816200 836234 853300 867790 907235 908950 938630 981295 999845 1018325 1036840 1121480 1140524 1142680 1163800 1194620 1233628 1239700 1296050 1314082 1340900 1373813 1401850 1425655 1428350 1451576 1493275 1542035 1570072 1577800 1599752 1629320 1672468 1706600 1735580 1814470 1817900 1877260 1962590 1995917 1999690 2036650 2090585 2158849 2169475 2281048 2346575 2389240 2467256 2479400 2592100 2628164 2681800 2747626 2803700 2851310 2856700 2986550 3084070 3285205 3344936 3471160 3628940 3635800 3754520 3925180 3991834 3999380 4073300 4181170 4317698 4338950 4536175 4599287 4693150 4906475 4999225 5184200 5256328 5495252 5607400 5702620 5713400 5973100 6168140 6570410 6869065 7128275 7257880 7710175 7850360 7983668 7998760 8146600 8362340 8635396 8677900 9072350 9198574 9386300 9616691 9812950 9979585 9998450 10452925 10794245 10990504 11405240 11946200 12336280 13140820 13738130 14256550 15111943 15420350 15967336 16426025 16724680 17270792 17355800 18144700 18397148 18772600 19233382 19625900 19959170 19996900 20905850 21588490 22996435 26281640 27476260 28513100 30223886 30840700 32852050 34345325 36289400 36794296 38466764 39251800 39918340 39993800 41811700 43176980 45992870 48083455 49897925 53971225 54952520 57026200 60447772 61681400 65704100 68690650 75559715 76933528 79836680 83623400 86353960 91985740 96166910 99795850 105783601 107942450 114982175 120895544 131408200 137381300 151119430 183971480 192333820 199591700 211567202 215884900 229964350 240417275 274762600 302238860 377798575 384667640 399183400 423134404 431769800 459928700 480834550 528918005 604477720 755597150 846268808 919857400 961669100 1057836010 1511194300 1923338200 2115672020 2644590025 3022388600 4231344040 5289180050 10578360100 21156720200
• Sum of all divisors σ(n): 66651984000
• Sum of proper divisors (its aliquot sum) s(n): 45495263800
• 21156720200 is an abundant number, because the sum of its proper divisors (45495263800) is greater than itself. Its abundance is 24338543600

Bases of 21156720200

• Binary: 10011101101000010011110111001001000₂
• Hexadecimal: 0x4ED09EE48
• Base-36: 9PW5XS8

Squares and roots of 21156720200

• 21156720200 squared (21156720200²) is 447606809621088040000
• 21156720200 cubed (21156720200³) is 9469892030768027681846408000000
• The square root of 21156720200 is 145453.4984110041
• The cube root of 21156720200 is 2765.7703349545

Scales and comparisons

• 21,156,720,200 seconds is equal to 672 years, 37 weeks, 2 days, 10 hours, 43 minutes, 20 seconds.
• To count from 1 to 21,156,720,200 would take you about one thousand, three hundred forty-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 21156720200 cubic inches would be around 230.5 feet tall.

Recreational maths with 21156720200

• 21156720200 backwards is 00202765112
• The number of decimal digits it has is: 11
• The sum of 21156720200's digits is 26
• More coming soon!