3990407121855

Names of 3990407121855

• Cardinal: 3990407121855 can be written as Three trillion, nine hundred ninety billion, four hundred seven million, one hundred twenty-one thousand, eight hundred fifty-five.

Scientific notation

• Scientific notation: 3.990407121855 × 10¹²

Factors of 3990407121855

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 19
• Sum of prime factors: 223

Divisors of 3990407121855

• Number of divisors d(n): 360
• Complete list of divisors:
  1 3 5 7 9 11 15 21 27 33 35 45 55 63 77 81 99 105 121 135 165 189 197 231 243 297 315 363 385 405 495 567 591 605 693 729 847 891 945 985 1089 1155 1215 1379 1485 1701 1773 1815 2079 2167 2187 2541 2673 2835 2955 3267 3465 3645 4137 4235 4455 5103 5319 5445 6237 6501 6561 6895 7623 8019 8505 8865 9801 10395 10835 10935 12411 12705 13365 15169 15309 15957 16335 18711 19503 19683 20685 22869 23837 24057 25515 26595 29403 31185 32505 32805 37233 38115 40095 45507 45927 47871 49005 56133 58509 59049 62055 68607 71511 72171 75845 76545 79785 88209 93555 97515 98415 111699 114345 119185 120285 136521 137781 143613 147015 166859 168399 175527 177147 186165 205821 214533 216513 227535 229635 239355 264627 280665 292545 295245 335097 343035 357555 360855 409563 413343 430839 441045 500577 505197 526581 531441 558495 617463 643599 649539 682605 688905 718065 793881 834295 841995 877635 885735 1005291 1029105 1072665 1082565 1228689 1240029 1292517 1323135 1501731 1515591 1579743 1594323 1675485 1852389 1930797 1948617 2047815 2066715 2154195 2381643 2502885 2525985 2632905 2657205 3015873 3087315 3217995 3247695 3686067 3720087 3877551 3969405 4505193 4546773 4739229 4782969 5026455 5557167 5792391 5845851 6143445 6200145 6462585 7144929 7508655 7577955 7898715 7971615 9047619 9261945 9653985 9743085 11058201 11160261 11632653 11908215 13515579 13640319 14217687 15079365 16671501 17377173 17537553 18430335 18600435 19387755 21434787 22525965 22733865 23696145 23914845 27142857 27785835 28961955 29229255 33174603 33480783 34897959 35724645 40546737 40920957 42653061 45238095 50014503 52131519 52612659 55291005 55801305 58163265 64304361 67577895 68201595 71088435 81428571 83357505 86885865 87687765 99523809 104693877 107173935 121640211 122762871 127959183 135714285 150043509 156394557 165873015 167403915 174489795 192913083 202733685 204604785 213265305 244285713 250072515 260657595 263063295 298571427 314081631 321521805 364920633 368288613 383877549 407142855 450130527 469183671 497619045 523469385 578739249 608201055 613814355 639795915 732857139 750217545 781972785 895714281 942244893 964565415 1094761899 1151632647 1221428565 1350391581 1407551013 1492857135 1570408155 1824603165 1841443065 1919387745 2198571417 2250652635 2345918355 2687142843 2893696245 3284285697 3454897941 3664285695 4051174743 4222653039 4478571405 4711224465 5473809495 5758163235 6595714251 6751957905 7037755065 8061428529 9852857091 10364693823 10992857085 12667959117 13435714215 16421428485 17274489705 20255873715 21113265195 24184285587 29558571273 32978571255 38003877351 40307142645 49264285455 51823469115 63339795585 72552856761 88675713819 114011632053 120921427935 147792856365 190019386755 266027141457 362764283805 443378569095 570058160265 798081424371 1330135707285 3990407121855
• Sum of all divisors σ(n): 9068738174496
• Sum of proper divisors (its aliquot sum) s(n): 5078331052641
• 3990407121855 is an abundant number, because the sum of its proper divisors (5078331052641) is greater than itself. Its abundance is 1087923930786

Bases of 3990407121855

• Binary: 111010000100010110110011001000101110111111₂
• Hexadecimal: 0x3A116CC8BBF
• Base-36: 1EX61DCXR

Squares and roots of 3990407121855

• 3990407121855 squared (3990407121855²) is 15923348998151104818641025
• 3990407121855 cubed (3990407121855³) is 63540645246004847895741754322677101375
• The square root of 3990407121855 is 1997600.3408727681
• The cube root of 3990407121855 is 15861.3105744637

Scales and comparisons

• 3,990,407,121,855 seconds is equal to 126,882 years, 31 weeks, 2 days, 14 hours, 44 minutes, 15 seconds.
• To count from 1 to 3,990,407,121,855 would take you about three hundred seventeen thousand, two 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 3990407121855 cubic inches would be around 1321.8 feet tall.

Recreational maths with 3990407121855

• 3990407121855 backwards is 5581217040993
• The number of decimal digits it has is: 13
• The sum of 3990407121855's digits is 54
• More coming soon!