21156320160

Names of 21156320160

• Cardinal: 21156320160 can be written as Twenty-one billion, one hundred fifty-six million, three hundred twenty thousand, one hundred sixty.

Scientific notation

• Scientific notation: 2.115632016 × 10¹⁰

Factors of 21156320160

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 3843

Divisors of 21156320160

• Number of divisors d(n): 108
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 30 32 36 40 45 48 60 72 80 90 96 120 144 160 180 240 288 360 480 720 1440 3833 7666 11499 15332 19165 22998 30664 34497 38330 45996 57495 61328 68994 76660 91992 114990 122656 137988 153320 172485 183984 229980 275976 306640 344970 367968 459960 551952 613280 689940 919920 1103904 1379880 1839840 2759760 5519520 14691889 29383778 44075667 58767556 73459445 88151334 117535112 132227001 146918890 176302668 220378335 235070224 264454002 293837780 352605336 440756670 470140448 528908004 587675560 661135005 705210672 881513340 1057816008 1175351120 1322270010 1410421344 1763026680 2115632016 2350702240 2644540020 3526053360 4231264032 5289080040 7052106720 10578160080 21156320160
• Sum of all divisors σ(n): 72214782822
• Sum of proper divisors (its aliquot sum) s(n): 51058462662
• 21156320160 is an abundant number, because the sum of its proper divisors (51058462662) is greater than itself. Its abundance is 29902142502

Bases of 21156320160

• Binary: 10011101101000000111101001110100000₂
• Hexadecimal: 0x4ED03D3A0
• Base-36: 9PVXD40

Squares and roots of 21156320160

• 21156320160 squared (21156320160²) is 447589882712422425600
• 21156320160 cubed (21156320160³) is 9469354859040858045157380096000
• The square root of 21156320160 is 145452.1232571047
• The cube root of 21156320160 is 2765.7529027355

Scales and comparisons

• 21,156,320,160 seconds is equal to 672 years, 36 weeks, 4 days, 19 hours, 36 minutes.
• To count from 1 to 21,156,320,160 would take you about one thousand, three hundred forty-five 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 21156320160 cubic inches would be around 230.5 feet tall.

Recreational maths with 21156320160

• 21156320160 backwards is 06102365112
• The number of decimal digits it has is: 11
• The sum of 21156320160's digits is 27
• More coming soon!