20897739520

Names of 20897739520

• Cardinal: 20897739520 can be written as Twenty billion, eight hundred ninety-seven million, seven hundred thirty-nine thousand, five hundred twenty.

Scientific notation

• Scientific notation: 2.089773952 × 10¹⁰

Factors of 20897739520

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 5054

Divisors of 20897739520

• Number of divisors d(n): 216
• Complete list of divisors:
  1 2 4 5 7 8 10 14 16 20 28 32 35 40 49 56 64 67 70 80 98 112 128 134 140 160 196 224 245 256 268 280 320 335 392 448 469 490 536 560 640 670 784 896 938 980 1072 1120 1280 1340 1568 1792 1876 1960 2144 2240 2345 2680 3136 3283 3752 3920 4288 4480 4690 4973 5360 6272 6566 7504 7840 8576 8960 9380 9946 10720 12544 13132 15008 15680 16415 17152 18760 19892 21440 24865 26264 30016 31360 32830 34811 37520 39784 42880 49730 52528 60032 62720 65660 69622 75040 79568 85760 99460 105056 120064 131320 139244 150080 159136 174055 198920 210112 243677 262640 278488 300160 318272 333191 348110 397840 420224 487354 525280 556976 600320 636544 666382 696220 795680 840448 974708 1050560 1113952 1218385 1273088 1332764 1392440 1591360 1665955 1949416 2101120 2227904 2332337 2436770 2665528 2784880 3182720 3331910 3898832 4202240 4455808 4664674 4873540 5331056 5569760 6365440 6663820 7797664 8911616 9329348 9747080 10662112 11139520 11661685 13327640 15595328 16326359 18658696 19494160 21324224 22279040 23323370 26655280 31190656 32652718 37317392 38988320 42648448 44558080 46646740 53310560 62381312 65305436 74634784 77976640 81631795 85296896 93293480 106621120 130610872 149269568 155953280 163263590 186586960 213242240 261221744 298539136 311906560 326527180 373173920 426484480 522443488 597078272 653054360 746347840 1044886976 1306108720 1492695680 2089773952 2612217440 2985391360 4179547904 5224434880 10448869760 20897739520
• Sum of all divisors σ(n): 59110100784
• Sum of proper divisors (its aliquot sum) s(n): 38212361264
• 20897739520 is an abundant number, because the sum of its proper divisors (38212361264) is greater than itself. Its abundance is 17314621744

Bases of 20897739520

• Binary: 10011011101100110100011001100000000₂
• Hexadecimal: 0x4DD9A3300
• Base-36: 9LLZ30G

Squares and roots of 20897739520

• 20897739520 squared (20897739520²) is 436715517045769830400
• 20897739520 cubed (20897739520³) is 9126367119564617833573777408000
• The square root of 20897739520 is 144560.5047030481
• The cube root of 20897739520 is 2754.4386509825

Scales and comparisons

• 20,897,739,520 seconds is equal to 664 years, 25 weeks, 23 hours, 38 minutes, 40 seconds.
• To count from 1 to 20,897,739,520 would take you about one thousand, three hundred twenty-eight 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 20897739520 cubic inches would be around 229.5 feet tall.

Recreational maths with 20897739520

• 20897739520 backwards is 02593779802
• The number of decimal digits it has is: 11
• The sum of 20897739520's digits is 52
• More coming soon!