20115420

Names of 20115420

• Cardinal: 20115420 can be written as Twenty million, one hundred fifteen thousand, four hundred twenty.

Scientific notation

• Scientific notation: 2.011542 × 10⁷

Factors of 20115420

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 118

Divisors of 20115420

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 3 4 5 6 10 12 13 15 17 20 26 30 34 37 39 41 51 52 60 65 68 74 78 82 85 102 111 123 130 148 156 164 170 185 195 204 205 221 222 246 255 260 340 370 390 410 442 444 481 492 510 533 555 615 629 663 697 740 780 820 884 962 1020 1066 1105 1110 1230 1258 1326 1394 1443 1517 1599 1887 1924 2091 2132 2210 2220 2405 2460 2516 2652 2665 2788 2886 3034 3145 3198 3315 3485 3774 4182 4420 4551 4810 5330 5772 6068 6290 6396 6630 6970 7215 7548 7585 7995 8177 8364 9061 9102 9435 9620 10455 10660 12580 13260 13940 14430 15170 15990 16354 18122 18204 18870 19721 20910 22755 24531 25789 27183 28860 30340 31980 32708 36244 37740 39442 40885 41820 45305 45510 49062 51578 54366 59163 77367 78884 81770 90610 91020 98124 98605 103156 108732 118326 122655 128945 135915 154734 163540 181220 197210 236652 245310 257890 271830 295815 309468 335257 386835 394420 490620 515780 543660 591630 670514 773670 1005771 1183260 1341028 1547340 1676285 2011542 3352570 4023084 5028855 6705140 10057710 20115420
• Sum of all divisors σ(n): 67568256
• Sum of proper divisors (its aliquot sum) s(n): 47452836
• 20115420 is an abundant number, because the sum of its proper divisors (47452836) is greater than itself. Its abundance is 27337416

Bases of 20115420

• Binary: 1001100101110111111011100₂
• Hexadecimal: 0x132EFDC
• Base-36: BZ55O

Squares and roots of 20115420

• 20115420 squared (20115420²) is 404630121776400
• 20115420 cubed (20115420³) is 8139304844183432088000
• The square root of 20115420 is 4485.0217390777
• The cube root of 20115420 is 271.9629238681

Scales and comparisons

• 20,115,420 seconds is equal to 33 weeks, 1 day, 19 hours, 37 minutes.
• To count from 1 to 20,115,420 would take you about forty-nine 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 20115420 cubic inches would be around 22.7 feet tall.

Recreational maths with 20115420

• 20115420 backwards is 02451102
• 20115420 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 20115420's digits is 15
• More coming soon!