20820278388

Names of 20820278388

• Cardinal: 20820278388 can be written as Twenty billion, eight hundred twenty million, two hundred seventy-eight thousand, three hundred eighty-eight.

Scientific notation

• Scientific notation: 2.0820278388 × 10¹⁰

Factors of 20820278388

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 3336

Divisors of 20820278388

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 3 4 6 7 12 13 14 21 26 28 39 41 42 52 78 82 84 91 123 149 156 164 182 246 273 287 298 364 447 492 533 546 574 596 861 894 1043 1066 1092 1148 1599 1722 1788 1937 2086 2132 3121 3129 3198 3444 3731 3874 4172 5811 6109 6242 6258 6396 7462 7748 9363 11193 11622 12218 12484 12516 13559 14924 18327 18726 21847 22386 23244 24436 27118 36654 37452 40573 40677 42763 43694 44772 54236 65541 73308 79417 81146 81354 85526 87388 121719 127961 128289 131082 158834 162292 162708 171052 238251 243438 255922 256578 262164 284011 317668 383883 465029 476502 486876 511844 513156 555919 568022 767766 852033 895727 930058 953004 1111838 1136044 1395087 1535532 1663493 1667757 1704066 1791454 1860116 2223676 2687181 2790174 3255203 3326986 3335514 3408132 3582908 4990479 5374362 5580348 6045377 6510406 6653972 6671028 9765609 9980958 10748724 11644451 12090754 13020812 18136131 19066189 19531218 19961916 23288902 24181508 34933353 36272262 38132378 39062436 42317639 46577804 57198567 69866706 72544524 76264756 84635278 114397134 126952917 133463323 139733412 169270556 228794268 247860457 253905834 266926646 400389969 495720914 507811668 533853292 743581371 800779938 991441828 1487162742 1601559876 1735023199 2974325484 3470046398 5205069597 6940092796 10410139194 20820278388
• Sum of all divisors σ(n): 61680729600
• Sum of proper divisors (its aliquot sum) s(n): 40860451212
• 20820278388 is an abundant number, because the sum of its proper divisors (40860451212) is greater than itself. Its abundance is 20040172824

Bases of 20820278388

• Binary: 10011011000111111000011110001110100₂
• Hexadecimal: 0x4D8FC3C74
• Base-36: 9KBUTMC

Squares and roots of 20820278388

• 20820278388 squared (20820278388²) is 433483992153819878544
• 20820278388 cubed (20820278388³) is 9025257393384137588894428107072
• The square root of 20820278388 is 144292.3365532625
• The cube root of 20820278388 is 2751.0311675867

Scales and comparisons

• 20,820,278,388 seconds is equal to 662 years, 1 week, 10 hours, 39 minutes, 48 seconds.
• To count from 1 to 20,820,278,388 would take you about one thousand, three hundred twenty-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 20820278388 cubic inches would be around 229.3 feet tall.

Recreational maths with 20820278388

• 20820278388 backwards is 88387202802
• The number of decimal digits it has is: 11
• The sum of 20820278388's digits is 48
• More coming soon!