20390383872

Names of 20390383872

• Cardinal: 20390383872 can be written as Twenty billion, three hundred ninety million, three hundred eighty-three thousand, eight hundred seventy-two.

Scientific notation

• Scientific notation: 2.0390383872 × 10¹⁰

Factors of 20390383872

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 4608

Divisors of 20390383872

• Number of divisors d(n): 216
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 18 24 32 36 37 48 53 64 72 74 96 106 111 128 144 148 159 192 212 222 256 288 296 318 333 384 424 444 477 576 592 636 666 768 848 888 954 1152 1184 1272 1332 1696 1776 1908 1961 2304 2368 2544 2664 3392 3552 3816 3922 4513 4736 5088 5328 5883 6784 7104 7632 7844 9026 9472 10176 10656 11766 13539 13568 14208 15264 15688 17649 18052 20352 21312 23532 27078 28416 30528 31376 35298 36104 40617 40704 42624 47064 54156 61056 62752 70596 72208 81234 85248 94128 108312 122112 125504 141192 144416 162468 166981 188256 216624 239189 251008 282384 288832 324936 333962 376512 433248 478378 500943 502016 564768 577664 649872 667924 717567 753024 866496 956756 1001886 1129536 1155328 1299744 1335848 1435134 1502829 1506048 1732992 1913512 2003772 2152701 2259072 2599488 2671696 2870268 3005658 3465984 3827024 4007544 4305402 4518144 5198976 5343392 5740536 6011316 7654048 8015088 8610804 8849993 10397952 10686784 11481072 12022632 15308096 16030176 17221608 17699986 21373568 22962144 24045264 26549979 30616192 32060352 34443216 35399972 42747136 45924288 48090528 53099958 61232384 64120704 68886432 70799944 79649937 91848576 96181056 106199916 128241408 137772864 141599888 159299874 183697152 192362112 212399832 275545728 283199776 318599748 384724224 424799664 551091456 566399552 637199496 849599328 1132799104 1274398992 1699198656 2265598208 2548797984 3398397312 5097595968 6796794624 10195191936 20390383872
• Sum of all divisors σ(n): 61532302104
• Sum of proper divisors (its aliquot sum) s(n): 41141918232
• 20390383872 is an abundant number, because the sum of its proper divisors (41141918232) is greater than itself. Its abundance is 20751534360

Bases of 20390383872

• Binary: 10010111111010111001001000100000000₂
• Hexadecimal: 0x4BF5C9100
• Base-36: 9D7WOW0

Squares and roots of 20390383872

• 20390383872 squared (20390383872²) is 415767754447517712384
• 20390383872 cubed (20390383872³) is 8477664114784321433029048270848
• The square root of 20390383872 is 142794.9014215845
• The cube root of 20390383872 is 2731.9650176625

Scales and comparisons

• 20,390,383,872 seconds is equal to 648 years, 18 weeks, 1 day, 19 hours, 31 minutes, 12 seconds.
• To count from 1 to 20,390,383,872 would take you about one thousand, two hundred ninety-six 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 20390383872 cubic inches would be around 227.7 feet tall.

Recreational maths with 20390383872

• 20390383872 backwards is 27838309302
• The number of decimal digits it has is: 11
• The sum of 20390383872's digits is 45
• More coming soon!