11721489920

Names of 11721489920

• Cardinal: 11721489920 can be written as Eleven billion, seven hundred twenty-one million, four hundred eighty-nine thousand, nine hundred twenty.

Scientific notation

• Scientific notation: 1.172148992 × 10¹⁰

Factors of 11721489920

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 15
• Sum of prime factors: 1921

Divisors of 11721489920

• Number of divisors d(n): 200
• Complete list of divisors:
  1 2 4 5 7 8 10 14 16 20 28 32 35 40 49 56 64 70 80 98 112 128 140 160 196 224 245 256 280 320 343 392 448 490 512 560 640 686 784 896 980 1120 1280 1372 1568 1715 1792 1907 1960 2240 2401 2560 2744 3136 3430 3584 3814 3920 4480 4802 5488 6272 6860 7628 7840 8960 9535 9604 10976 12005 12544 13349 13720 15256 15680 17920 19070 19208 21952 24010 25088 26698 27440 30512 31360 38140 38416 43904 48020 53396 54880 61024 62720 66745 76280 76832 87808 93443 96040 106792 109760 122048 125440 133490 152560 153664 175616 186886 192080 213584 219520 244096 266980 305120 307328 373772 384160 427168 439040 467215 488192 533960 610240 614656 654101 747544 768320 854336 878080 934430 976384 1067920 1220480 1229312 1308202 1495088 1536640 1708672 1868860 2135840 2440960 2616404 2990176 3073280 3270505 3417344 3737720 4271680 4578707 4881920 5232808 5980352 6146560 6541010 6834688 7475440 8543360 9157414 10465616 11960704 13082020 14950880 17086720 18314828 20931232 22893535 23921408 26164040 29901760 34173440 36629656 41862464 45787070 47842816 52328080 59803520 73259312 83724928 91574140 104656160 119607040 146518624 167449856 183148280 209312320 239214080 293037248 334899712 366296560 418624640 586074496 732593120 837249280 1172148992 1465186240 1674498560 2344297984 2930372480 5860744960 11721489920
• Sum of all divisors σ(n): 32803362504
• Sum of proper divisors (its aliquot sum) s(n): 21081872584
• 11721489920 is an abundant number, because the sum of its proper divisors (21081872584) is greater than itself. Its abundance is 9360382664

Bases of 11721489920

• Binary: 1010111010101001111011111000000000₂
• Hexadecimal: 0x2BAA7BE00
• Base-36: 5DUO7I8

Squares and roots of 11721489920

• 11721489920 squared (11721489920²) is 137393325944661606400
• 11721489920 cubed (11721489920³) is 1610454485135625497228607488000
• The square root of 11721489920 is 108265.8298818237
• The cube root of 11721489920 is 2271.5777500031

Scales and comparisons

• 11,721,489,920 seconds is equal to 372 years, 36 weeks, 5 days, 9 hours, 25 minutes, 20 seconds.
• To count from 1 to 11,721,489,920 would take you about seven hundred forty-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 11721489920 cubic inches would be around 189.3 feet tall.

Recreational maths with 11721489920

• 11721489920 backwards is 02998412711
• The number of decimal digits it has is: 11
• The sum of 11721489920's digits is 44
• More coming soon!