3989819681991

Names of 3989819681991

• Cardinal: 3989819681991 can be written as Three trillion, nine hundred eighty-nine billion, eight hundred nineteen million, six hundred eighty-one thousand, nine hundred ninety-one.

Scientific notation

• Scientific notation: 3.989819681991 × 10¹²

Factors of 3989819681991

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 364

Divisors of 3989819681991

• Number of divisors d(n): 112
• Complete list of divisors:
  1 3 9 11 13 27 33 39 81 99 117 143 243 297 337 351 429 729 891 1011 1053 1287 2673 3033 3159 3707 3861 4381 8019 9099 9477 11121 11583 13143 27297 33363 34749 39429 48191 81891 100089 104247 113569 118287 144573 245673 300267 340707 354861 433719 900801 1022121 1064583 1249259 1301157 1476397 2702403 3066363 3193749 3747777 3903471 4429191 9199089 11243331 11710413 13287573 16240367 27597267 33729993 35131239 38272753 39862719 48721101 82791801 101189979 114818259 119588157 146163303 303569937 344454777 358764471 421000283 438489909 497545789 910709811 1033364331 1076293413 1263000849 1315469727 1492637367 3100092993 3789002547 3946409181 4477912101 5473003679 9300278979 11367007641 11839227543 13433736303 16419011037 27900836937 34101022923 40301208909 49257033111 102303068769 120903626727 147771099333 306909206307 362710880181 443313297999 1329939893997 3989819681991
• Sum of all divisors σ(n): 7048712055840
• Sum of proper divisors (its aliquot sum) s(n): 3058892373849
• 3989819681991 is a deficient number, because the sum of its proper divisors (3058892373849) is less than itself. Its deficiency is 930927308142

Bases of 3989819681991

• Binary: 111010000011110011110010001110110011000111₂
• Hexadecimal: 0x3A0F3C8ECC7
• Base-36: 1EWWBMHFR

Squares and roots of 3989819681991

• 3989819681991 squared (3989819681991²) is 15918661094802764369724081
• 3989819681991 cubed (3989819681991³) is 63512587346988469240480238403834725271
• The square root of 3989819681991 is 1997453.2990763513
• The cube root of 3989819681991 is 15860.5322058159

Scales and comparisons

• 3,989,819,681,991 seconds is equal to 126,863 years, 48 weeks, 12 hours, 59 minutes, 51 seconds.
• To count from 1 to 3,989,819,681,991 would take you about three hundred seventeen thousand, one hundred fifty-nine 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 3989819681991 cubic inches would be around 1321.7 feet tall.

Recreational maths with 3989819681991

• 3989819681991 backwards is 1991869189893
• 3989819681991 is a Harshad number.
• The number of decimal digits it has is: 13
• The sum of 3989819681991's digits is 81
• More coming soon!