27988729920

Names of 27988729920

• Cardinal: 27988729920 can be written as Twenty-seven billion, nine hundred eighty-eight million, seven hundred twenty-nine thousand, nine hundred twenty.

Scientific notation

• Scientific notation: 2.798872992 × 10¹⁰

Factors of 27988729920

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 262704

Divisors of 27988729920

• Number of divisors d(n): 168
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 30 32 36 37 40 45 48 60 64 72 74 80 90 96 111 120 144 148 160 180 185 192 222 240 288 296 320 333 360 370 444 480 555 576 592 666 720 740 888 960 1110 1184 1332 1440 1480 1665 1776 2220 2368 2664 2880 2960 3330 3552 4440 5328 5920 6660 7104 8880 10656 11840 13320 17760 21312 26640 35520 53280 106560 262657 525314 787971 1050628 1313285 1575942 2101256 2363913 2626570 3151884 3939855 4202512 4727826 5253140 6303768 7879710 8405024 9455652 9718309 10506280 11819565 12607536 15759420 16810048 18911304 19436618 21012560 23639130 25215072 29154927 31518840 37822608 38873236 42025120 47278260 48591545 50430144 58309854 63037680 75645216 77746472 84050240 87464781 94556520 97183090 116619708 126075360 145774635 151290432 155492944 174929562 189113040 194366180 233239416 252150720 291549270 310985888 349859124 378226080 388732360 437323905 466478832 583098540 621971776 699718248 756452160 777464720 874647810 932957664 1166197080 1399436496 1554929440 1749295620 1865915328 2332394160 2798872992 3109858880 3498591240 4664788320 5597745984 6997182480 9329576640 13994364960 27988729920
• Sum of all divisors σ(n): 98871825624
• Sum of proper divisors (its aliquot sum) s(n): 70883095704
• 27988729920 is an abundant number, because the sum of its proper divisors (70883095704) is greater than itself. Its abundance is 42894365784

Bases of 27988729920

• Binary: 11010000100010000100010000001000000₂
• Hexadecimal: 0x684422040
• Base-36: CUVRM80

Squares and roots of 27988729920

• 27988729920 squared (27988729920²) is 783369002534703206400
• 27988729920 cubed (27988729920³) is 21925503439643603471287615488000
• The square root of 27988729920 is 167298.3261123671
• The cube root of 27988729920 is 3036.1815052895

Scales and comparisons

• 27,988,729,920 seconds is equal to 889 years, 49 weeks, 4 days, 15 hours, 12 minutes.
• To count from 1 to 27,988,729,920 would take you about one thousand, seven hundred seventy-nine 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 27988729920 cubic inches would be around 253 feet tall.

Recreational maths with 27988729920

• 27988729920 backwards is 02992788972
• The number of decimal digits it has is: 11
• The sum of 27988729920's digits is 63
• More coming soon!