20135868720

Names of 20135868720

• Cardinal: 20135868720 can be written as Twenty billion, one hundred thirty-five million, eight hundred sixty-eight thousand, seven hundred twenty.

Scientific notation

• Scientific notation: 2.013586872 × 10¹⁰

Factors of 20135868720

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 7627244

Divisors of 20135868720

• Number of divisors d(n): 80
• Complete list of divisors:
  1 2 3 4 5 6 8 10 11 12 15 16 20 22 24 30 33 40 44 48 55 60 66 80 88 110 120 132 165 176 220 240 264 330 440 528 660 880 1320 2640 7627223 15254446 22881669 30508892 38136115 45763338 61017784 76272230 83899453 91526676 114408345 122035568 152544460 167798906 183053352 228816690 251698359 305088920 335597812 366106704 419497265 457633380 503396718 610177840 671195624 838994530 915266760 1006793436 1258491795 1342391248 1677989060 1830533520 2013586872 2516983590 3355978120 4027173744 5033967180 6711956240 10067934360 20135868720
• Sum of all divisors σ(n): 68095855872
• Sum of proper divisors (its aliquot sum) s(n): 47959987152
• 20135868720 is an abundant number, because the sum of its proper divisors (47959987152) is greater than itself. Its abundance is 27824118432

Bases of 20135868720

• Binary: 10010110000001100001111100100110000₂
• Hexadecimal: 0x4B030F930
• Base-36: 990DJQO

Squares and roots of 20135868720

• 20135868720 squared (20135868720²) is 405453209109074438400
• 20135868720 cubed (20135868720³) is 8164152590723031052330126848000
• The square root of 20135868720 is 141900.9116249787
• The cube root of 20135868720 is 2720.5504905127

Scales and comparisons

• 20,135,868,720 seconds is equal to 640 years, 13 weeks, 3 days, 52 minutes.
• To count from 1 to 20,135,868,720 would take you about one thousand, two hundred eighty 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 20135868720 cubic inches would be around 226.7 feet tall.

Recreational maths with 20135868720

• 20135868720 backwards is 02786853102
• The number of decimal digits it has is: 11
• The sum of 20135868720's digits is 42
• More coming soon!