213642390

Names of 213642390

• Cardinal: 213642390 can be written as Two hundred thirteen million, six hundred forty-two thousand, three hundred ninety.

Scientific notation

• Scientific notation: 2.1364239 × 10⁸

Factors of 213642390

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 526

Divisors of 213642390

• Number of divisors d(n): 128
• Complete list of divisors:
  1 2 3 5 6 10 13 15 26 30 31 39 41 62 65 78 82 93 123 130 155 186 195 205 246 310 390 403 410 431 465 533 615 806 862 930 1066 1209 1230 1271 1293 1599 2015 2155 2418 2542 2586 2665 3198 3813 4030 4310 5330 5603 6045 6355 6465 7626 7995 11206 12090 12710 12930 13361 15990 16523 16809 17671 19065 26722 28015 33046 33618 35342 38130 40083 49569 53013 56030 66805 80166 82615 84045 88355 99138 106026 133610 165230 168090 173693 176710 200415 229723 247845 265065 347386 400830 459446 495690 521079 530130 547801 689169 868465 1042158 1095602 1148615 1378338 1643403 1736930 2297230 2605395 2739005 3286806 3445845 5210790 5478010 6891690 7121413 8217015 14242826 16434030 21364239 35607065 42728478 71214130 106821195 213642390
• Sum of all divisors σ(n): 585252864
• Sum of proper divisors (its aliquot sum) s(n): 371610474
• 213642390 is an abundant number, because the sum of its proper divisors (371610474) is greater than itself. Its abundance is 157968084

Bases of 213642390

• Binary: 1100101110111110110010010110₂
• Hexadecimal: 0xCBBEC96
• Base-36: 3J73IU

Squares and roots of 213642390

• 213642390 squared (213642390²) is 45643070804912100
• 213642390 cubed (213642390³) is 9751294733700644783919000
• The square root of 213642390 is 14616.5108695611
• The cube root of 213642390 is 597.8090369845

Scales and comparisons

• 213,642,390 seconds is equal to 6 years, 41 weeks, 1 day, 17 hours, 6 minutes, 30 seconds.
• To count from 1 to 213,642,390 would take you about ten 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 213642390 cubic inches would be around 49.8 feet tall.

Recreational maths with 213642390

• 213642390 backwards is 093246312
• 213642390 is a Harshad number.
• The number of decimal digits it has is: 9
• The sum of 213642390's digits is 30
• More coming soon!