20490240

Names of 20490240

• Cardinal: 20490240 can be written as Twenty million, four hundred ninety thousand, two hundred forty.

Scientific notation

• Scientific notation: 2.049024 × 10⁷

Factors of 20490240

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 15
• Sum of prime factors: 62

Divisors of 20490240

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 15 16 20 23 24 29 30 32 40 46 48 58 60 64 69 80 87 92 96 115 116 120 128 138 145 160 174 184 192 230 232 240 256 276 290 320 345 348 368 384 435 460 464 480 512 552 580 640 667 690 696 736 768 870 920 928 960 1024 1104 1160 1280 1334 1380 1392 1472 1536 1740 1840 1856 1920 2001 2048 2208 2320 2560 2668 2760 2784 2944 3072 3335 3480 3680 3712 3840 4002 4416 4640 5120 5336 5520 5568 5888 6144 6670 6960 7360 7424 7680 8004 8832 9280 10005 10240 10672 11040 11136 11776 13340 13920 14720 14848 15360 16008 17664 18560 20010 21344 22080 22272 23552 26680 27840 29440 29696 30720 32016 35328 37120 40020 42688 44160 44544 47104 53360 55680 58880 59392 64032 70656 74240 80040 85376 88320 89088 106720 111360 117760 128064 141312 148480 160080 170752 176640 178176 213440 222720 235520 256128 296960 320160 341504 353280 426880 445440 512256 640320 683008 706560 853760 890880 1024512 1280640 1366016 1707520 2049024 2561280 3415040 4098048 5122560 6830080 10245120 20490240
• Sum of all divisors σ(n): 70761600
• Sum of proper divisors (its aliquot sum) s(n): 50271360
• 20490240 is an abundant number, because the sum of its proper divisors (50271360) is greater than itself. Its abundance is 29781120

Bases of 20490240

• Binary: 1001110001010100000000000₂
• Hexadecimal: 0x138A800
• Base-36: C76DC

Squares and roots of 20490240

• 20490240 squared (20490240²) is 419849935257600
• 20490240 cubed (20490240³) is 8602825937412685824000
• The square root of 20490240 is 4526.6146290577
• The cube root of 20490240 is 273.6417432291

Scales and comparisons

• 20,490,240 seconds is equal to 33 weeks, 6 days, 3 hours, 44 minutes.
• To count from 1 to 20,490,240 would take you about fifty weeks!

  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 20490240 cubic inches would be around 22.8 feet tall.

Recreational maths with 20490240

• 20490240 backwards is 04209402
• The number of decimal digits it has is: 8
• The sum of 20490240's digits is 21
• More coming soon!