21311832880

Names of 21311832880

• Cardinal: 21311832880 can be written as Twenty-one billion, three hundred eleven million, eight hundred thirty-two thousand, eight hundred eighty.

Scientific notation

• Scientific notation: 2.131183288 × 10¹⁰

Factors of 21311832880

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 50900

Divisors of 21311832880

• Number of divisors d(n): 120
• Complete list of divisors:
  1 2 4 5 8 10 13 16 20 26 31 40 52 62 65 80 104 124 130 155 169 208 248 260 310 338 403 496 520 620 676 806 845 1040 1240 1352 1612 1690 2015 2480 2704 3224 3380 4030 5239 6448 6760 8060 10478 13520 16120 20956 26195 32240 41912 50849 52390 83824 101698 104780 203396 209560 254245 406792 419120 508490 661037 813584 1016980 1322074 1576319 2033960 2644148 3152638 3305185 4067920 5288296 6305276 6610370 7881595 8593481 10576592 12610552 13220740 15763190 17186962 20492147 25221104 26441480 31526380 34373924 40984294 42967405 52882960 63052760 68747848 81968588 85934810 102460735 126105520 137495696 163937176 171869620 204921470 266397911 327874352 343739240 409842940 532795822 687478480 819685880 1065591644 1331989555 1639371760 2131183288 2663979110 4262366576 5327958220 10655916440 21311832880
• Sum of all divisors σ(n): 55386633600
• Sum of proper divisors (its aliquot sum) s(n): 34074800720
• 21311832880 is an abundant number, because the sum of its proper divisors (34074800720) is greater than itself. Its abundance is 12762967840

Bases of 21311832880

• Binary: 10011110110010010001100001100110000₂
• Hexadecimal: 0x4F648C330
• Base-36: 9SGIJHS

Squares and roots of 21311832880

• 21311832880 squared (21311832880²) is 454194220705049094400
• 21311832880 cubed (21311832880³) is 9679711326727842072048143872000
• The square root of 21311832880 is 145985.7283435609
• The cube root of 21311832880 is 2772.5130603619

Scales and comparisons

• 21,311,832,880 seconds is equal to 677 years, 33 weeks, 5 days, 17 hours, 34 minutes, 40 seconds.
• To count from 1 to 21,311,832,880 would take you about one thousand, three hundred fifty-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 21311832880 cubic inches would be around 231 feet tall.

Recreational maths with 21311832880

• 21311832880 backwards is 08823811312
• The number of decimal digits it has is: 11
• The sum of 21311832880's digits is 37
• More coming soon!