21073458420

Names of 21073458420

• Cardinal: 21073458420 can be written as Twenty-one billion, seventy-three million, four hundred fifty-eight thousand, four hundred twenty.

Scientific notation

• Scientific notation: 2.107345842 × 10¹⁰

Factors of 21073458420

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 993

Divisors of 21073458420

• Number of divisors d(n): 432
• Complete list of divisors:
  1 2 3 4 5 6 7 9 10 12 14 15 18 20 21 27 28 29 30 35 36 42 45 49 54 58 60 63 70 84 87 90 98 105 108 116 126 135 140 145 147 174 180 189 196 203 210 245 252 261 270 290 294 315 348 378 406 420 435 441 490 522 540 580 588 609 630 735 756 783 812 841 870 882 945 947 980 1015 1044 1218 1260 1305 1323 1421 1470 1566 1682 1740 1764 1827 1890 1894 2030 2205 2436 2523 2610 2646 2841 2842 2940 3045 3132 3364 3654 3780 3788 3915 4060 4205 4263 4410 4735 5046 5220 5292 5481 5682 5684 5887 6090 6615 6629 7105 7308 7569 7830 8410 8523 8526 8820 9135 9470 10092 10962 11364 11774 12180 12615 12789 13230 13258 14205 14210 15138 15660 16820 17046 17052 17661 18270 18940 19887 21315 21924 22707 23548 25230 25569 25578 26460 26516 27405 27463 28410 28420 29435 30276 33145 34092 35322 36540 37845 38367 39774 41209 42615 42630 45414 46403 50460 51138 51156 52983 54810 54926 56820 58870 59661 63945 66290 70644 75690 76734 79548 82389 82418 85230 85260 88305 90828 92806 99435 102276 105966 109620 109852 113535 117740 119322 123627 127845 127890 132580 137315 139209 151380 153468 158949 164778 164836 170460 176610 178983 185612 191835 192241 198870 206045 211932 227070 232015 238644 247167 247254 255690 255780 264915 274630 278418 298305 317898 329556 353220 357966 370881 383670 384482 397740 411945 412090 417627 454140 464030 494334 494508 511380 529830 549260 556836 576723 596610 618135 635796 696045 715932 741501 741762 767340 768964 794745 796427 823890 824180 835254 894915 928060 961205 988668 1059660 1112643 1153446 1193220 1235835 1236270 1252881 1345687 1392090 1483002 1483524 1589490 1592854 1647780 1670508 1730169 1789830 1854405 1922410 2088135 2225286 2306892 2389281 2471670 2472540 2505762 2691374 2784180 2883615 2966004 3178980 3185708 3460338 3579660 3707505 3708810 3844820 3982135 4037061 4176270 4450572 4778562 4943340 5011524 5190507 5382748 5563215 5574989 5767230 6264405 6728435 6920676 7167843 7415010 7417620 7964270 8074122 8352540 8650845 9557124 10381014 11126430 11149978 11534460 11946405 12111183 12528810 13456870 14335686 14830020 15928540 16148244 16724967 17301690 20185305 20762028 21503529 22252860 22299956 23892810 24222366 25057620 25952535 26913740 27874945 28671372 33449934 34603380 35839215 36333549 39024923 40370610 43007058 47785620 48444732 50174901 51905070 55749890 60555915 66899868 71678430 72667098 78049846 80741220 83624835 86014116 100349802 103810140 107517645 111499780 117074769 121111830 143356860 145334196 150524703 156099692 167249670 181667745 195124615 200699604 215035290 234149538 242223660 250874505 301049406 334499340 351224307 363335490 390249230 430070580 468299076 501749010 585373845 602098812 702448614 726670980 752623515 780498460 1003498020 1053672921 1170747690 1404897228 1505247030 1756121535 2107345842 2341495380 3010494060 3512243070 4214691684 5268364605 7024486140 10536729210 21073458420
• Sum of all divisors σ(n): 79069798080
• Sum of proper divisors (its aliquot sum) s(n): 57996339660
• 21073458420 is an abundant number, because the sum of its proper divisors (57996339660) is greater than itself. Its abundance is 36922881240

Bases of 21073458420

• Binary: 10011101000000100110111010011110100₂
• Hexadecimal: 0x4E81374F4
• Base-36: 9OILCL0

Squares and roots of 21073458420

• 21073458420 squared (21073458420²) is 444090649779468896400
• 21073458420 cubed (21073458420³) is 9358525842838419957968687688000
• The square root of 21073458420 is 145167.0018289281
• The cube root of 21073458420 is 2762.1373566813

Scales and comparisons

• 21,073,458,420 seconds is equal to 670 years, 3 weeks, 4 days, 18 hours, 27 minutes.
• To count from 1 to 21,073,458,420 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 21073458420 cubic inches would be around 230.2 feet tall.

Recreational maths with 21073458420

• 21073458420 backwards is 02485437012
• 21073458420 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21073458420's digits is 36
• More coming soon!