21065721365340

Names of 21065721365340

• Cardinal: 21065721365340 can be written as Twenty-one trillion, sixty-five billion, seven hundred twenty-one million, three hundred sixty-five thousand, three hundred forty.

Scientific notation

• Scientific notation: 2.106572136534 × 10¹³

Factors of 21065721365340

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 65847

Divisors of 21065721365340

• Number of divisors d(n): 108
• Complete list of divisors:
  1 2 3 4 5 6 9 10 12 15 18 20 27 30 36 45 54 60 81 90 108 135 162 180 243 270 324 405 486 540 810 972 1215 1620 2430 4860 65837 131674 197511 263348 329185 395022 592533 658370 790044 987555 1185066 1316740 1777599 1975110 2370132 2962665 3555198 3950220 5332797 5925330 7110396 8887995 10665594 11850660 15998391 17775990 21331188 26663985 31996782 35551980 53327970 63993564 79991955 106655940 159983910 319967820 4334510569 8669021138 13003531707 17338042276 21672552845 26007063414 39010595121 43345105690 52014126828 65017658535 78021190242 86690211380 117031785363 130035317070 156042380484 195052975605 234063570726 260070634140 351095356089 390105951210 468127141452 585158926815 702190712178 780211902420 1053286068267 1170317853630 1404381424356 1755476780445 2106572136534 2340635707260 3510953560890 4213144273068 5266430341335 7021907121780 10532860682670 21065721365340
• Sum of all divisors σ(n): 66267004110216
• Sum of proper divisors (its aliquot sum) s(n): 45201282744876
• 21065721365340 is an abundant number, because the sum of its proper divisors (45201282744876) is greater than itself. Its abundance is 24135561379536

Bases of 21065721365340

• Binary: 100110010100010111110110101101100001101011100₂
• Hexadecimal: 0x1328BED6C35C
• Base-36: 7GTGILLR0

Squares and roots of 21065721365340

• 21065721365340 squared (21065721365340²) is 443764616642142153753315600
• 21065721365340 cubed (21065721365340³) is 9348221765980288497346663706783921304000
• The square root of 21065721365340 is 4589740.8821566387
• The cube root of 21065721365340 is 27617.9927859233

Scales and comparisons

• 21,065,721,365,340 seconds is equal to 669,824 years, 40 weeks, 3 days, 12 hours, 9 minutes.
• To count from 1 to 21,065,721,365,340 would take you about one million, six hundred seventy-four thousand, five hundred sixty-one 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 21065721365340 cubic inches would be around 2301.5 feet tall.

Recreational maths with 21065721365340

• 21065721365340 backwards is 04356312756012
• 21065721365340 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 21065721365340's digits is 45
• More coming soon!