6399888040

Names of 6399888040

• Cardinal: 6399888040 can be written as Six billion, three hundred ninety-nine million, eight hundred eighty-eight thousand and forty.

Scientific notation

• Scientific notation: 6.39988804 × 10⁹

Factors of 6399888040

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 166

Divisors of 6399888040

• Number of divisors d(n): 216
• Complete list of divisors:
  1 2 4 5 7 8 10 13 14 20 26 28 35 40 49 52 56 65 70 91 98 104 130 139 140 169 182 196 245 260 278 280 338 364 392 455 490 520 556 637 676 695 728 845 910 973 980 1112 1183 1274 1352 1390 1690 1807 1820 1946 1960 2366 2548 2780 3185 3380 3614 3640 3892 4732 4865 5096 5560 5915 6370 6760 6811 7228 7784 8281 9035 9464 9730 11830 12649 12740 13622 14456 16562 18070 19321 19460 23491 23660 25298 25480 27244 33124 34055 36140 38642 38920 41405 46982 47320 50596 54488 63245 66248 68110 72280 77284 82810 88543 93964 96605 101192 117455 126490 135247 136220 154568 164437 165620 177086 187928 193210 234910 251173 252980 270494 272440 328874 331240 354172 386420 442715 469820 502346 505960 540988 657748 676235 708344 772840 822185 885430 939640 946729 1004692 1081976 1151059 1255865 1315496 1352470 1644370 1758211 1770860 1893458 2009384 2302118 2511730 2704940 3265249 3288740 3516422 3541720 3786916 4604236 4733645 5023460 5409880 5755295 6530498 6577480 7032844 7573832 8791055 9208472 9467290 10046920 11510590 12307477 13060996 14065688 16326245 17582110 18934580 22856743 23021180 24614954 26121992 32652490 35164220 37869160 45713486 46042360 49229908 61537385 65304980 70328440 91426972 98459816 114283715 123074770 130609960 159997201 182853944 228567430 246149540 319994402 457134860 492299080 639988804 799986005 914269720 1279977608 1599972010 3199944020 6399888040
• Sum of all divisors σ(n): 18269792190
• Sum of proper divisors (its aliquot sum) s(n): 11869904150
• 6399888040 is an abundant number, because the sum of its proper divisors (11869904150) is greater than itself. Its abundance is 5470016110

Bases of 6399888040

• Binary: 101111101011101101000101010101000₂
• Hexadecimal: 0x17D768AA8
• Base-36: 2XUBT7S

Squares and roots of 6399888040

• 6399888040 squared (6399888040²) is 40958566924535041600
• 6399888040 cubed (6399888040³) is 262130242595871395296742464000
• The square root of 6399888040 is 79999.3002469397
• The cube root of 6399888040 is 1856.6247068761

Scales and comparisons

• 6,399,888,040 seconds is equal to 203 years, 25 weeks, 5 days, 18 hours, 40 minutes, 40 seconds.
• To count from 1 to 6,399,888,040 would take you about four hundred six 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 6399888040 cubic inches would be around 154.7 feet tall.

Recreational maths with 6399888040

• 6399888040 backwards is 0408889936
• The number of decimal digits it has is: 10
• The sum of 6399888040's digits is 55
• More coming soon!