21439672320

Names of 21439672320

• Cardinal: 21439672320 can be written as Twenty-one billion, four hundred thirty-nine million, six hundred seventy-two thousand, three hundred twenty.

Scientific notation

• Scientific notation: 2.143967232 × 10¹⁰

Factors of 21439672320

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 16
• Sum of prime factors: 31744

Divisors of 21439672320

• Number of divisors d(n): 208
• Complete list of divisors:
  1 2 3 4 5 6 8 10 11 12 15 16 20 22 24 30 32 33 40 44 48 55 60 64 66 80 88 96 110 120 128 132 160 165 176 192 220 240 256 264 320 330 352 384 440 480 512 528 640 660 704 768 880 960 1024 1056 1280 1320 1408 1536 1760 1920 2048 2112 2560 2640 2816 3072 3520 3840 4096 4224 5120 5280 5632 6144 7040 7680 8448 10240 10560 11264 12288 14080 15360 16896 20480 21120 22528 28160 30720 31723 33792 42240 45056 56320 61440 63446 67584 84480 95169 112640 126892 135168 158615 168960 190338 225280 253784 317230 337920 348953 380676 475845 507568 634460 675840 697906 761352 951690 1015136 1046859 1268920 1395812 1522704 1744765 1903380 2030272 2093718 2537840 2791624 3045408 3489530 3806760 4060544 4187436 5075680 5234295 5583248 6090816 6979060 7613520 8121088 8374872 10151360 10468590 11166496 12181632 13958120 15227040 16242176 16749744 20302720 20937180 22332992 24363264 27916240 30454080 32484352 33499488 40605440 41874360 44665984 48726528 55832480 60908160 64968704 66998976 81210880 83748720 89331968 97453056 111664960 121816320 129937408 133997952 162421760 167497440 178663936 194906112 223329920 243632640 267995904 324843520 334994880 357327872 389812224 446659840 487265280 535991808 649687040 669989760 714655744 893319680 974530560 1071983616 1339979520 1429311488 1786639360 1949061120 2143967232 2679959040 3573278720 4287934464 5359918080 7146557440 10719836160 21439672320
• Sum of all divisors σ(n): 74837169792
• Sum of proper divisors (its aliquot sum) s(n): 53397497472
• 21439672320 is an abundant number, because the sum of its proper divisors (53397497472) is greater than itself. Its abundance is 31957825152

Bases of 21439672320

• Binary: 10011111101111001110111000000000000₂
• Hexadecimal: 0x4FDE77000
• Base-36: 9UKML1C

Squares and roots of 21439672320

• 21439672320 squared (21439672320²) is 459659549188974182400
• 21439672320 cubed (21439672320³) is 9854950113370528227595911168000
• The square root of 21439672320 is 146422.9227955787
• The cube root of 21439672320 is 2778.0456702391

Scales and comparisons

• 21,439,672,320 seconds is equal to 681 years, 37 weeks, 1 day, 8 hours, 32 minutes.
• To count from 1 to 21,439,672,320 would take you about one thousand, three hundred sixty-three 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 21439672320 cubic inches would be around 231.5 feet tall.

Recreational maths with 21439672320

• 21439672320 backwards is 02327693412
• The number of decimal digits it has is: 11
• The sum of 21439672320's digits is 39
• More coming soon!