1991207126320

Names of 1991207126320

• Cardinal: 1991207126320 can be written as One trillion, nine hundred ninety-one billion, two hundred seven million, one hundred twenty-six thousand, three hundred twenty.

Scientific notation

• Scientific notation: 1.99120712632 × 10¹²

Factors of 1991207126320

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 8982536

Divisors of 1991207126320

• Number of divisors d(n): 80
• Complete list of divisors:
  1 2 4 5 8 10 16 17 20 34 40 68 80 85 136 163 170 272 326 340 652 680 815 1304 1360 1630 2608 2771 3260 5542 6520 11084 13040 13855 22168 27710 44336 55420 110840 221680 8982349 17964698 35929396 44911745 71858792 89823490 143717584 152699933 179646980 305399866 359293960 610799732 718587920 763499665 1221599464 1464122887 1526999330 2443198928 2928245774 3053998660 5856491548 6107997320 7320614435 11712983096 12215994640 14641228870 23425966192 24890089079 29282457740 49780178158 58564915480 99560356316 117129830960 124450445395 199120712632 248900890790 398241425264 497801781580 995603563160 1991207126320
• Sum of all divisors σ(n): 4931956879200
• Sum of proper divisors (its aliquot sum) s(n): 2940749752880
• 1991207126320 is an abundant number, because the sum of its proper divisors (2940749752880) is greater than itself. Its abundance is 949542626560

Bases of 1991207126320

• Binary: 11100111110011101001100011000010100110000₂
• Hexadecimal: 0x1CF9D318530
• Base-36: PEQXB7SG

Squares and roots of 1991207126320

• 1991207126320 squared (1991207126320²) is 3964905819907552436742400
• 1991207126320 cubed (1991207126320³) is 7894948723787560935630547886099968000
• The square root of 1991207126320 is 1411101.3876826853
• The cube root of 1991207126320 is 12580.7194965103

Scales and comparisons

• 1,991,207,126,320 seconds is equal to 63,314 years, 11 weeks, 5 days, 18 hours, 38 minutes, 40 seconds.
• To count from 1 to 1,991,207,126,320 would take you about one hundred fifty-eight 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 1991207126320 cubic inches would be around 1048.4 feet tall.

Recreational maths with 1991207126320

• 1991207126320 backwards is 0236217021991
• The number of decimal digits it has is: 13
• The sum of 1991207126320's digits is 43
• More coming soon!