399684796940

Names of 399684796940

• Cardinal: 399684796940 can be written as Three hundred ninety-nine billion, six hundred eighty-four million, seven hundred ninety-six thousand, nine hundred forty.

Scientific notation

• Scientific notation: 3.9968479694 × 10¹¹

Factors of 399684796940

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 21771

Divisors of 399684796940

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 4 5 10 11 13 20 22 26 44 52 55 65 110 121 130 143 220 242 260 286 484 572 601 605 715 1202 1210 1430 1573 2404 2420 2860 3005 3146 6010 6292 6611 7813 7865 12020 13222 15626 15730 21139 26444 31252 31460 33055 39065 42278 66110 72721 78130 84556 85943 105695 132220 145442 156260 171886 211390 232529 274807 290884 343772 363605 422780 429715 465058 549614 727210 859430 930116 945373 1099228 1162645 1374035 1454420 1718860 1890746 2325290 2557819 2748070 3022877 3781492 4650580 4726865 5115638 5496140 6045754 9453730 10231276 12091508 12704539 12789095 15114385 18907460 25409078 25578190 30228770 33251647 50818156 51156380 60457540 63522695 66503294 127045390 133006588 139749929 165159007 166258235 254090780 279499858 330318014 332516470 558999716 660636028 665032940 698749645 825795035 1397499290 1537249219 1651590070 1816749077 2794998580 3074498438 3303180140 3633498154 6148996876 7266996308 7686246095 9083745385 15372492190 18167490770 19984239847 30744984380 36334981540 39968479694 79936959388 99921199235 199842398470 399684796940
• Sum of all divisors σ(n): 995246001120
• Sum of proper divisors (its aliquot sum) s(n): 595561204180
• 399684796940 is an abundant number, because the sum of its proper divisors (595561204180) is greater than itself. Its abundance is 195876407240

Bases of 399684796940

• Binary: 101110100001111000100100000001000001100₂
• Hexadecimal: 0x5D0F12020C
• Base-36: 53M20B2K

Squares and roots of 399684796940

• 399684796940 squared (399684796940²) is 159747936904969033363600
• 399684796940 cubed (399684796940³) is 63848821723446480176918551187384000
• The square root of 399684796940 is 632206.2930246743
• The cube root of 399684796940 is 7366.1271253619

Scales and comparisons

• 399,684,796,940 seconds is equal to 12,708 years, 38 weeks, 3 days, 10 hours, 42 minutes, 20 seconds.
• To count from 1 to 399,684,796,940 would take you about twenty-five thousand, four hundred seventeen 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 399684796940 cubic inches would be around 613.8 feet tall.

Recreational maths with 399684796940

• 399684796940 backwards is 049697486993
• The number of decimal digits it has is: 12
• The sum of 399684796940's digits is 74
• More coming soon!