21073326820

Names of 21073326820

• Cardinal: 21073326820 can be written as Twenty-one billion, seventy-three million, three hundred twenty-six thousand, eight hundred twenty.

Scientific notation

• Scientific notation: 2.107332682 × 10¹⁰

Factors of 21073326820

• Number of distinct prime factors ω(n): 8
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 349

Divisors of 21073326820

• Number of divisors d(n): 384
• Complete list of divisors:
  1 2 4 5 7 10 13 14 17 20 26 28 34 35 52 53 65 68 70 71 85 91 106 119 130 140 142 170 181 182 212 221 238 260 265 284 340 355 362 364 371 442 455 476 497 530 595 689 710 724 742 884 901 905 910 923 994 1060 1105 1190 1207 1267 1378 1420 1484 1547 1802 1810 1820 1846 1855 1988 2210 2353 2380 2414 2485 2534 2756 3077 3094 3445 3604 3620 3692 3710 3763 4420 4505 4615 4706 4823 4828 4970 5068 6035 6154 6188 6307 6335 6461 6890 7420 7526 7735 8449 9010 9230 9412 9593 9646 9940 11713 11765 12070 12308 12614 12670 12851 12922 13780 15052 15385 15470 15691 16471 16898 18020 18460 18815 19186 19292 21539 23426 23530 24115 24140 25228 25340 25702 25844 26341 30770 30940 31382 31535 32305 32942 33796 37630 38372 40001 42245 43078 46852 47060 47965 48230 48919 51404 52682 58565 61540 62764 63070 63971 64255 64610 65884 67151 75260 78455 80002 81991 82355 84490 86156 89957 95930 96460 97838 105364 107695 109837 117130 124709 126140 127942 128510 129220 131705 134302 156910 160004 163081 163982 164710 167063 168980 179914 191860 195676 200005 215390 218467 219674 234260 244595 249418 255884 257020 263410 268604 280007 313820 319855 326162 327964 329420 334126 335755 342433 359828 400010 409955 430780 436934 439348 447797 449785 489190 498836 526820 549185 560014 623545 639710 652324 668252 671510 681103 684866 800020 815405 819910 831623 835315 872963 873868 895594 899570 978380 1092335 1098370 1120028 1141567 1169441 1247090 1279420 1343020 1362206 1369732 1400035 1529269 1630810 1639820 1663246 1670630 1712165 1745926 1791188 1799140 2120053 2184670 2196740 2238985 2283134 2338882 2494180 2724412 2800070 2840071 3058538 3261620 3326492 3341260 3405515 3424330 3491852 4158115 4240106 4364815 4369340 4477970 4566268 4677764 4767721 5600140 5680142 5707835 5821361 5847205 6117076 6811030 6848660 7646345 8316230 8480212 8729630 8854339 8955940 9535442 10600265 11360284 11415670 11578751 11642722 11694410 13622060 14200355 14840371 15292690 16632460 17459260 17708678 19070884 19880497 21200530 22831340 23157502 23285444 23388820 23838605 28400710 29106805 29680742 30585380 35417356 39760994 42401060 44271695 46315004 47677210 56801420 57893755 58213610 59361484 61980373 74201855 79521988 81051257 88543390 95354420 99402485 115787510 116427220 123960746 148403710 150523763 162102514 177086780 198804970 231575020 247921492 296807420 301047526 309901865 324205028 397609940 405256285 602095052 619803730 752618815 810512570 1053666341 1239607460 1505237630 1621025140 2107332682 3010475260 4214665364 5268331705 10536663410 21073326820
• Sum of all divisors σ(n): 59915261952
• Sum of proper divisors (its aliquot sum) s(n): 38841935132
• 21073326820 is an abundant number, because the sum of its proper divisors (38841935132) is greater than itself. Its abundance is 17768608312

Bases of 21073326820

• Binary: 10011101000000100010111001011100100₂
• Hexadecimal: 0x4E81172E4
• Base-36: 9OIIJ1G

Squares and roots of 21073326820

• 21073326820 squared (21073326820²) is 444085103262531312400
• 21073326820 cubed (21073326820³) is 9358350516944770606688718568000
• The square root of 21073326820 is 145166.5485571657
• The cube root of 21073326820 is 2762.1316069837

Scales and comparisons

• 21,073,326,820 seconds is equal to 670 years, 3 weeks, 3 days, 5 hours, 53 minutes, 40 seconds.
• To count from 1 to 21,073,326,820 would take you about one thousand, three hundred forty 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 21073326820 cubic inches would be around 230.2 feet tall.

Recreational maths with 21073326820

• 21073326820 backwards is 02862337012
• 21073326820 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21073326820's digits is 34
• More coming soon!