21289946310

Names of 21289946310

• Cardinal: 21289946310 can be written as Twenty-one billion, two hundred eighty-nine million, nine hundred forty-six thousand, three hundred ten.

Scientific notation

• Scientific notation: 2.128994631 × 10¹⁰

Factors of 21289946310

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 7237

Divisors of 21289946310

• Number of divisors d(n): 128
• Complete list of divisors:
  1 2 3 5 6 9 10 15 18 19 27 30 38 45 54 57 90 95 114 135 171 190 270 285 342 513 570 631 855 1026 1262 1710 1893 2565 3155 3786 5130 5679 6310 6577 9465 11358 11989 13154 17037 18930 19731 23978 28395 32885 34074 35967 39462 56790 59193 59945 65770 71934 85185 98655 107901 118386 119890 124963 170370 177579 179835 197310 215802 249926 295965 323703 355158 359670 374889 539505 591930 624815 647406 749778 887895 1079010 1124667 1249630 1618515 1775790 1874445 2249334 3237030 3374001 3748890 4150087 5623335 6748002 8300174 11246670 12450261 16870005 20750435 24900522 33740010 37350783 41500870 62251305 74701566 78851653 112052349 124502610 157703306 186753915 224104698 236554959 373507830 394258265 473109918 560261745 709664877 788516530 1120523490 1182774795 1419329754 2128994631 2365549590 3548324385 4257989262 7096648770 10644973155 21289946310
• Sum of all divisors σ(n): 59865062400
• Sum of proper divisors (its aliquot sum) s(n): 38575116090
• 21289946310 is an abundant number, because the sum of its proper divisors (38575116090) is greater than itself. Its abundance is 17285169780

Bases of 21289946310

• Binary: 10011110100111110101100110011000110₂
• Hexadecimal: 0x4F4FACCC6
• Base-36: 9S3HFPI

Squares and roots of 21289946310

• 21289946310 squared (21289946310²) is 453261813882682616100
• 21289946310 cubed (21289946310³) is 9649919681935525535539341591000
• The square root of 21289946310 is 145910.7477535497
• The cube root of 21289946310 is 2771.5636412327

Scales and comparisons

• 21,289,946,310 seconds is equal to 676 years, 49 weeks, 4 days, 9 hours, 58 minutes, 30 seconds.
• To count from 1 to 21,289,946,310 would take you about one thousand, three hundred fifty-three 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 21289946310 cubic inches would be around 231 feet tall.

Recreational maths with 21289946310

• 21289946310 backwards is 01364998212
• 21289946310 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21289946310's digits is 45
• More coming soon!