20642857920

Names of 20642857920

• Cardinal: 20642857920 can be written as Twenty billion, six hundred forty-two million, eight hundred fifty-seven thousand, nine hundred twenty.

Scientific notation

• Scientific notation: 2.064285792 × 10¹⁰

Factors of 20642857920

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 1759

Divisors of 20642857920

• Number of divisors d(n): 336
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 16 17 18 20 24 30 32 34 36 40 45 48 51 60 64 68 72 80 85 90 96 102 120 136 144 153 160 170 180 192 204 240 255 272 288 293 306 320 340 360 408 480 510 544 576 586 612 680 720 765 816 879 960 1020 1088 1172 1224 1360 1439 1440 1465 1530 1632 1758 2040 2344 2448 2637 2720 2878 2880 2930 3060 3264 3516 4080 4317 4395 4688 4896 4981 5274 5440 5756 5860 6120 7032 7195 8160 8634 8790 9376 9792 9962 10548 11512 11720 12240 12951 13185 14064 14390 14943 16320 17268 17580 18752 19924 21096 21585 23024 23440 24463 24480 24905 25902 26370 28128 28780 29886 34536 35160 39848 42192 43170 44829 46048 46880 48926 48960 49810 51804 52740 56256 57560 59772 64755 69072 70320 73389 74715 79696 84384 86340 89658 92096 93760 97852 99620 103608 105480 115120 119544 122315 129510 138144 140640 146778 149430 159392 168768 172680 179316 195704 199240 207216 210960 220167 224145 230240 239088 244630 259020 276288 281280 293556 298860 318784 345360 358632 366945 391408 398480 414432 421627 421920 440334 448290 460480 478176 489260 518040 587112 597720 690720 717264 733890 782816 796960 828864 843254 843840 880668 896580 956352 978520 1036080 1100835 1174224 1195440 1264881 1381440 1434528 1467780 1565632 1593920 1686508 1761336 1793160 1957040 2072160 2108135 2201670 2348448 2390880 2529762 2869056 2935560 3373016 3522672 3586320 3794643 3914080 4144320 4216270 4403340 4696896 4781760 5059524 5871120 6324405 6746032 7045344 7167659 7172640 7589286 7828160 8432540 8806680 10119048 11742240 12648810 13492064 14090688 14335318 14345280 15178572 16865080 17613360 18973215 20238096 21502977 23484480 25297620 26984128 28670636 30357144 33730160 35226720 35838295 37946430 40476192 43005954 50595240 57341272 60714288 64508931 67460320 70453440 71676590 75892860 80952384 86011908 101190480 107514885 114682544 121428576 129017862 134920640 143353180 151785720 172023816 202380960 215029770 229365088 242857152 258035724 286706360 303571440 322544655 344047632 404761920 430059540 458730176 516071448 573412720 607142880 645089310 688095264 860119080 1032142896 1146825440 1214285760 1290178620 1376190528 1720238160 2064285792 2293650880 2580357240 3440476320 4128571584 5160714480 6880952640 10321428960 20642857920
• Sum of all divisors σ(n): 75488474880
• Sum of proper divisors (its aliquot sum) s(n): 54845616960
• 20642857920 is an abundant number, because the sum of its proper divisors (54845616960) is greater than itself. Its abundance is 34202759040

Bases of 20642857920

• Binary: 10011001110011010010000001111000000₂
• Hexadecimal: 0x4CE6903C0
• Base-36: 9HE8340

Squares and roots of 20642857920

• 20642857920 squared (20642857920²) is 426127583105306726400
• 20642857920 cubed (20642857920³) is 8796491153835839151095513088000
• The square root of 20642857920 is 143676.2260083415
• The cube root of 20642857920 is 2743.1945407123

Scales and comparisons

• 20,642,857,920 seconds is equal to 656 years, 19 weeks, 4 days, 23 hours, 12 minutes.
• To count from 1 to 20,642,857,920 would take you about one thousand, three hundred twelve 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 20642857920 cubic inches would be around 228.6 feet tall.

Recreational maths with 20642857920

• 20642857920 backwards is 02975824602
• 20642857920 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 20642857920's digits is 45
• More coming soon!