21431486912

Names of 21431486912

• Cardinal: 21431486912 can be written as Twenty-one billion, four hundred thirty-one million, four hundred eighty-six thousand, nine hundred twelve.

Scientific notation

• Scientific notation: 2.1431486912 × 10¹⁰

Factors of 21431486912

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 651

Divisors of 21431486912

• Number of divisors d(n): 112
• Complete list of divisors:
  1 2 4 8 11 16 22 32 37 44 64 74 88 148 176 296 352 407 592 601 704 814 1184 1202 1369 1628 2368 2404 2738 3256 4808 5476 6512 6611 9616 10952 13024 13222 15059 19232 21904 22237 26048 26444 30118 38464 43808 44474 50653 52888 60236 87616 88948 101306 105776 120472 177896 202612 211552 240944 244607 355792 405224 423104 481888 489214 557183 711584 810448 822769 963776 978428 1114366 1423168 1620896 1645538 1956856 2228732 3241792 3291076 3913712 4457464 6582152 7827424 8914928 9050459 13164304 15654848 17829856 18100918 26328608 30442453 35659712 36201836 52657216 60884906 72403672 121769812 144807344 243539624 289614688 334866983 487079248 579229376 669733966 974158496 1339467932 1948316992 2678935864 5357871728 10715743456 21431486912
• Sum of all divisors σ(n): 47762342880
• Sum of proper divisors (its aliquot sum) s(n): 26330855968
• 21431486912 is an abundant number, because the sum of its proper divisors (26330855968) is greater than itself. Its abundance is 4899369056

Bases of 21431486912

• Binary: 10011111101011010101000100111000000₂
• Hexadecimal: 0x4FD6A89C0
• Base-36: 9UFR54W

Squares and roots of 21431486912

• 21431486912 squared (21431486912²) is 459308631259227295744
• 21431486912 cubed (21431486912³) is 9843666919400763867970689302528
• The square root of 21431486912 is 146394.9688752999
• The cube root of 21431486912 is 2777.6920838067

Scales and comparisons

• 21,431,486,912 seconds is equal to 681 years, 23 weeks, 4 days, 14 hours, 48 minutes, 32 seconds.
• To count from 1 to 21,431,486,912 would take you about one thousand, three hundred sixty-two 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 21431486912 cubic inches would be around 231.5 feet tall.

Recreational maths with 21431486912

• 21431486912 backwards is 21968413412
• The number of decimal digits it has is: 11
• The sum of 21431486912's digits is 41
• More coming soon!