21142982718

Names of 21142982718

• Cardinal: 21142982718 can be written as Twenty-one billion, one hundred forty-two million, nine hundred eighty-two thousand, seven hundred eighteen.

Scientific notation

• Scientific notation: 2.1142982718 × 10¹⁰

Factors of 21142982718

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 126

Divisors of 21142982718

• Number of divisors d(n): 160
• Complete list of divisors:
  1 2 3 6 9 11 13 18 22 26 27 33 39 54 66 78 81 97 99 117 143 162 194 198 234 286 291 297 351 429 582 594 702 858 873 891 1053 1067 1261 1287 1746 1782 2106 2134 2522 2574 2619 3201 3783 3861 5238 6402 7566 7722 7857 9409 9603 11349 11583 13871 15714 18818 19206 22698 23166 27742 28227 28809 34047 41613 56454 57618 68094 83226 84681 86427 102141 103499 122317 124839 169362 172854 204282 206998 244634 249678 254043 310497 366951 374517 508086 620994 733902 749034 762129 912673 931491 1100853 1123551 1345487 1524258 1825346 1862982 2201706 2247102 2690974 2738019 2794473 3302559 4036461 5476038 5588946 6605118 8072922 8214057 8383419 9907677 10039403 11864749 12109383 16428114 16766838 19815354 20078806 23729498 24218766 24642171 30118209 35594247 36328149 49284342 60236418 71188494 72656298 73926513 90354627 106782741 108984447 130512239 147853026 180709254 213565482 217968894 261024478 271063881 320348223 391536717 542127762 640696446 783073434 813191643 961044669 1174610151 1626383286 1922089338 2349220302 3523830453 7047660906 10571491359 21142982718
• Sum of all divisors σ(n): 56238225120
• Sum of proper divisors (its aliquot sum) s(n): 35095242402
• 21142982718 is an abundant number, because the sum of its proper divisors (35095242402) is greater than itself. Its abundance is 13952259684

Bases of 21142982718

• Binary: 10011101100001110000101000000111110₂
• Hexadecimal: 0x4EC38503E
• Base-36: 9PNZHVI

Squares and roots of 21142982718

• 21142982718 squared (21142982718²) is 447025718213646667524
• 21142982718 cubed (21142982718³) is 9451457034692669323218223850232
• The square root of 21142982718 is 145406.2678085095
• The cube root of 21142982718 is 2765.1715819913

Scales and comparisons

• 21,142,982,718 seconds is equal to 672 years, 14 weeks, 4 days, 10 hours, 45 minutes, 18 seconds.
• To count from 1 to 21,142,982,718 would take you about one thousand, three hundred forty-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 21142982718 cubic inches would be around 230.4 feet tall.

Recreational maths with 21142982718

• 21142982718 backwards is 81728924112
• The number of decimal digits it has is: 11
• The sum of 21142982718's digits is 45
• More coming soon!