20751379920

Names of 20751379920

• Cardinal: 20751379920 can be written as Twenty billion, seven hundred fifty-one million, three hundred seventy-nine thousand, nine hundred twenty.

Scientific notation

• Scientific notation: 2.075137992 × 10¹⁰

Factors of 20751379920

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 172760

Divisors of 20751379920

• Number of divisors d(n): 120
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 30 36 40 45 48 60 72 80 90 120 144 167 180 240 334 360 501 668 720 835 1002 1336 1503 1670 2004 2505 2672 3006 3340 4008 5010 6012 6680 7515 8016 10020 12024 13360 15030 20040 24048 30060 40080 60120 120240 172583 345166 517749 690332 862915 1035498 1380664 1553247 1725830 2070996 2588745 2761328 3106494 3451660 4141992 5177490 6212988 6903320 7766235 8283984 10354980 12425976 13806640 15532470 20709960 24851952 28821361 31064940 41419920 57642722 62129880 86464083 115285444 124259760 144106805 172928166 230570888 259392249 288213610 345856332 432320415 461141776 518784498 576427220 691712664 864640830 1037568996 1152854440 1296961245 1383425328 1729281660 2075137992 2305708880 2593922490 3458563320 4150275984 5187844980 6917126640 10375689960 20751379920
• Sum of all divisors σ(n): 70107762816
• Sum of proper divisors (its aliquot sum) s(n): 49356382896
• 20751379920 is an abundant number, because the sum of its proper divisors (49356382896) is greater than itself. Its abundance is 28605002976

Bases of 20751379920

• Binary: 10011010100111000001110110111010000₂
• Hexadecimal: 0x4D4E0EDD0
• Base-36: 9J6U380

Squares and roots of 20751379920

• 20751379920 squared (20751379920²) is 430619768584179206400
• 20751379920 cubed (20751379920³) is 8935954418952783213370495488000
• The square root of 20751379920 is 144053.3926014935
• The cube root of 20751379920 is 2747.9932431837

Scales and comparisons

• 20,751,379,920 seconds is equal to 659 years, 43 weeks, 1 day, 12 minutes.
• To count from 1 to 20,751,379,920 would take you about one thousand, three hundred nineteen 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 20751379920 cubic inches would be around 229 feet tall.

Recreational maths with 20751379920

• 20751379920 backwards is 02997315702
• 20751379920 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 20751379920's digits is 45
• More coming soon!