3991402991768

Names of 3991402991768

• Cardinal: 3991402991768 can be written as Three trillion, nine hundred ninety-one billion, four hundred two million, nine hundred ninety-one thousand, seven hundred sixty-eight.

Scientific notation

• Scientific notation: 3.991402991768 × 10¹²

Factors of 3991402991768

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 1389

Divisors of 3991402991768

• Number of divisors d(n): 72
• Complete list of divisors:
  1 2 4 8 19 38 76 131 152 262 524 1048 1237 2474 2489 4948 4978 9896 9956 17161 19912 23503 34322 47006 68644 94012 137288 162047 188024 324094 326059 648188 652118 1296376 1304236 1530169 2608472 3060338 3078893 6120676 6157786 12241352 12315572 21228157 24631144 29073211 42456314 58146422 84912628 116292844 169825256 200452139 232585688 400904278 403334983 801808556 806669966 1603617112 1613339932 3226679864 3808590641 7617181282 15234362564 26259230209 30468725128 52518460418 105036920836 210073841672 498925373971 997850747942 1995701495884 3991402991768
• Sum of all divisors σ(n): 7944786375300
• Sum of proper divisors (its aliquot sum) s(n): 3953383383532
• 3991402991768 is a deficient number, because the sum of its proper divisors (3953383383532) is less than itself. Its deficiency is 38019608236

Bases of 3991402991768

• Binary: 111010000101010010001010000101000010011000₂
• Hexadecimal: 0x3A152285098
• Base-36: 1EXMIAB2W

Squares and roots of 3991402991768

• 3991402991768 squared (3991402991768²) is 15931297842694541075765824
• 3991402991768 cubed (3991402991768³) is 63588229872078075492373475075367736832
• The square root of 3991402991768 is 1997849.5918782275
• The cube root of 3991402991768 is 15862.6299459505

Scales and comparisons

• 3,991,402,991,768 seconds is equal to 126,914 years, 13 weeks, 6 days, 21 hours, 16 minutes, 8 seconds.
• To count from 1 to 3,991,402,991,768 would take you about three hundred seventeen thousand, two hundred eighty-five 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 3991402991768 cubic inches would be around 1321.9 feet tall.

Recreational maths with 3991402991768

• 3991402991768 backwards is 8671992041993
• The number of decimal digits it has is: 13
• The sum of 3991402991768's digits is 68
• More coming soon!