20147179920

Names of 20147179920

• Cardinal: 20147179920 can be written as Twenty billion, one hundred forty-seven million, one hundred seventy-nine thousand, nine hundred twenty.

Scientific notation

• Scientific notation: 2.014717992 × 10¹⁰

Factors of 20147179920

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 3480

Divisors of 20147179920

• Number of divisors d(n): 120
• Complete list of divisors:
  1 2 3 4 5 6 7 8 10 12 14 15 16 20 21 24 28 30 35 40 42 48 56 60 70 80 84 105 112 120 140 168 210 240 280 336 420 560 840 1680 3463 6926 10389 13852 17315 20778 24241 27704 34630 41556 48482 51945 55408 69260 72723 83112 96964 103890 121205 138520 145446 166224 193928 207780 242410 277040 290892 363615 387856 415560 484820 581784 727230 831120 969640 1163568 1454460 1939280 2908920 5817840 11992369 23984738 35977107 47969476 59961845 71954214 83946583 95938952 119923690 143908428 167893166 179885535 191877904 239847380 251839749 287816856 335786332 359771070 419732915 479694760 503679498 575633712 671572664 719542140 839465830 959389520 1007358996 1259198745 1343145328 1439084280 1678931660 2014717992 2518397490 2878168560 3357863320 4029435984 5036794980 6715726640 10073589960 20147179920
• Sum of all divisors σ(n): 71399198016
• Sum of proper divisors (its aliquot sum) s(n): 51252018096
• 20147179920 is an abundant number, because the sum of its proper divisors (51252018096) is greater than itself. Its abundance is 31104838176

Bases of 20147179920

• Binary: 10010110000110111011001000110010000₂
• Hexadecimal: 0x4B0DD9190
• Base-36: 9973ZIO

Squares and roots of 20147179920

• 20147179920 squared (20147179920²) is 405908858728851206400
• 20147179920 cubed (20147179920³) is 8177918807932027750249855488000
• The square root of 20147179920 is 141940.7620100723
• The cube root of 20147179920 is 2721.0598126387

Scales and comparisons

• 20,147,179,920 seconds is equal to 640 years, 32 weeks, 22 hours, 52 minutes.
• To count from 1 to 20,147,179,920 would take you about one thousand, two hundred eighty-one 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 20147179920 cubic inches would be around 226.8 feet tall.

Recreational maths with 20147179920

• 20147179920 backwards is 02997174102
• 20147179920 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 20147179920's digits is 42
• More coming soon!