399315270420

Names of 399315270420

• Cardinal: 399315270420 can be written as Three hundred ninety-nine billion, three hundred fifteen million, two hundred seventy thousand, four hundred twenty.

Scientific notation

• Scientific notation: 3.9931527042 × 10¹¹

Factors of 399315270420

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 3538187

Divisors of 399315270420

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 3 4 5 6 9 10 11 12 15 18 19 20 22 27 30 33 36 38 44 45 54 55 57 60 66 76 90 95 99 108 110 114 132 135 165 171 180 190 198 209 220 228 270 285 297 330 342 380 396 418 495 513 540 570 594 627 660 684 836 855 990 1026 1045 1140 1188 1254 1485 1710 1881 1980 2052 2090 2508 2565 2970 3135 3420 3762 4180 5130 5643 5940 6270 7524 9405 10260 11286 12540 18810 22572 28215 37620 56430 112860 3538147 7076294 10614441 14152588 17690735 21228882 31843323 35381470 38919617 42457764 53072205 63686646 67224793 70762940 77839234 95529969 106144410 116758851 127373292 134449586 155678468 159216615 191059938 194598085 201674379 212288820 233517702 268899172 318433230 336123965 350276553 382119876 389196170 403348758 467035404 477649845 583794255 605023137 636866460 672247930 700553106 739472723 778392340 806697516 955299690 1008371895 1050829659 1167588510 1210046274 1344495860 1401106212 1478945446 1751382765 1815069411 1910599380 2016743790 2101659318 2218418169 2335177020 2420092548 2957890892 3025115685 3502765530 3630138822 3697363615 4033487580 4203318636 4436836338 5254148295 6050231370 6655254507 7005531060 7260277644 7394727230 8873672676 9075347055 10508296590 11092090845 12100462740 13310509014 14789454460 18150694110 19965763521 21016593180 22184181690 26621018028 33276272535 36301388220 39931527042 44368363380 66552545070 79863054084 99828817605 133105090140 199657635210 399315270420
• Sum of all divisors σ(n): 1426581273600
• Sum of proper divisors (its aliquot sum) s(n): 1027266003180
• 399315270420 is an abundant number, because the sum of its proper divisors (1027266003180) is greater than itself. Its abundance is 627950732760

Bases of 399315270420

• Binary: 101110011111001000010110111101100010100₂
• Hexadecimal: 0x5CF90B7B14
• Base-36: 53FY02L0

Squares and roots of 399315270420

• 399315270420 squared (399315270420²) is 159452685190597726976400
• 399315270420 cubed (399315270420³) is 63671892106078660589018494958088000
• The square root of 399315270420 is 631913.9739078413
• The cube root of 399315270420 is 7363.8563204355

Scales and comparisons

• 399,315,270,420 seconds is equal to 12,696 years, 51 weeks, 3 days, 12 hours, 27 minutes.
• To count from 1 to 399,315,270,420 would take you about twenty-five thousand, three hundred ninety-three 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 399315270420 cubic inches would be around 613.7 feet tall.

Recreational maths with 399315270420

• 399315270420 backwards is 024072513993
• 399315270420 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 399315270420's digits is 45
• More coming soon!