20989394400

Names of 20989394400

• Cardinal: 20989394400 can be written as Twenty billion, nine hundred eighty-nine million, three hundred ninety-four thousand, four hundred.

Scientific notation

• Scientific notation: 2.09893944 × 10¹⁰

Factors of 20989394400

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 51772

Divisors of 20989394400

• Number of divisors d(n): 216
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 13 15 16 20 24 25 26 30 32 39 40 48 50 52 60 65 75 78 80 96 100 104 120 130 150 156 160 169 195 200 208 240 260 300 312 325 338 390 400 416 480 507 520 600 624 650 676 780 800 845 975 1014 1040 1200 1248 1300 1352 1560 1690 1950 2028 2080 2400 2535 2600 2704 3120 3380 3900 4056 4225 5070 5200 5408 6240 6760 7800 8112 8450 10140 10400 12675 13520 15600 16224 16900 20280 25350 27040 31200 33800 40560 50700 51749 67600 81120 101400 103498 135200 155247 202800 206996 258745 310494 405600 413992 517490 620988 672737 776235 827984 1034980 1241976 1293725 1345474 1552470 1655968 2018211 2069960 2483952 2587450 2690948 3104940 3363685 3881175 4036422 4139920 4967904 5174900 5381896 6209880 6727370 7762350 8072844 8279840 8745581 10091055 10349800 10763792 12419760 13454740 15524700 16145688 16818425 17491162 20182110 20699600 21527584 24839520 26236743 26909480 31049400 32291376 33636850 34982324 40364220 41399200 43727905 50455275 52473486 53818960 62098800 64582752 67273700 69964648 80728440 87455810 100910550 104946972 107637920 124197600 131183715 134547400 139929296 161456880 174911620 201821100 209893944 218639525 262367430 269094800 279858592 322913760 349823240 403642200 419787888 437279050 524734860 538189600 655918575 699646480 807284400 839575776 874558100 1049469720 1311837150 1399292960 1614568800 1749116200 2098939440 2623674300 3498232400 4197878880 5247348600 6996464800 10494697200 20989394400
• Sum of all divisors σ(n): 73981593000
• Sum of proper divisors (its aliquot sum) s(n): 52992198600
• 20989394400 is an abundant number, because the sum of its proper divisors (52992198600) is greater than itself. Its abundance is 32002804200

Bases of 20989394400

• Binary: 10011100011000100001011110111100000₂
• Hexadecimal: 0x4E310BDE0
• Base-36: 9N4JKDC

Squares and roots of 20989394400

• 20989394400 squared (20989394400²) is 440554677278751360000
• 20989394400 cubed (20989394400³) is 9246975876168431034576384000000
• The square root of 20989394400 is 144877.1700441447
• The cube root of 20989394400 is 2758.4596529947

Scales and comparisons

• 20,989,394,400 seconds is equal to 667 years, 20 weeks, 4 days, 19 hours, 20 minutes.
• To count from 1 to 20,989,394,400 would take you about one thousand, three hundred thirty-four 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 20989394400 cubic inches would be around 229.9 feet tall.

Recreational maths with 20989394400

• 20989394400 backwards is 00449398902
• 20989394400 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 20989394400's digits is 48
• More coming soon!