72221568640

Names of 72221568640

• Cardinal: 72221568640 can be written as Seventy-two billion, two hundred twenty-one million, five hundred sixty-eight thousand, six hundred forty.

Scientific notation

• Scientific notation: 7.222156864 × 10¹⁰

Factors of 72221568640

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 14274

Divisors of 72221568640

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 4 5 8 10 13 16 20 26 32 40 47 52 64 65 80 94 104 128 130 160 169 188 208 235 260 320 338 376 416 470 520 611 640 676 752 832 845 940 1040 1222 1352 1504 1664 1690 1880 2080 2444 2704 3008 3055 3380 3760 4160 4888 5408 6016 6110 6760 7520 7943 8320 9776 10816 12220 13520 14207 15040 15886 19552 21632 24440 27040 28414 30080 31772 39104 39715 48880 54080 56828 63544 71035 78208 79430 97760 108160 113656 127088 142070 158860 184691 195520 227312 254176 284140 317720 369382 391040 454624 508352 568280 635440 667729 738764 909248 923455 1016704 1136560 1270880 1335458 1477528 1818496 1846910 2273120 2400983 2541760 2670916 2955056 3338645 3693820 4546240 4801966 5083520 5341832 5910112 6677290 7387640 8680477 9092480 9603932 10683664 11820224 12004915 13354580 14775280 17360954 19207864 21367328 23640448 24009830 26709160 29550560 34721908 38415728 42734656 43402385 48019660 53418320 59101120 69443816 76831456 85469312 86804770 96039320 106836640 112846201 118202240 138887632 153662912 173609540 192078640 213673280 225692402 277775264 307325824 347219080 384157280 427346560 451384804 555550528 564231005 694438160 768314560 902769608 1111101056 1128462010 1388876320 1536629120 1805539216 2256924020 2777752640 3611078432 4513848040 5555505280 7222156864 9027696080 14444313728 18055392160 36110784320 72221568640
• Sum of all divisors σ(n): 190948700160
• Sum of proper divisors (its aliquot sum) s(n): 118727131520
• 72221568640 is an abundant number, because the sum of its proper divisors (118727131520) is greater than itself. Its abundance is 46505562880

Bases of 72221568640

• Binary: 1000011010000101111011010111010000000₂
• Hexadecimal: 0x10D0BDAE80
• Base-36: X6EUV0G

Squares and roots of 72221568640

• 72221568640 squared (72221568640²) is 5215954976822231449600
• 72221568640 cubed (72221568640³) is 376704450381716397715253100544000
• The square root of 72221568640 is 268740.7089370719
• The cube root of 72221568640 is 4164.4306959847

Scales and comparisons

• 72,221,568,640 seconds is equal to 2,296 years, 21 weeks, 6 days, 18 hours, 50 minutes, 40 seconds.
• To count from 1 to 72,221,568,640 would take you about four thousand, five hundred ninety-two 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 72221568640 cubic inches would be around 347 feet tall.

Recreational maths with 72221568640

• 72221568640 backwards is 04686512227
• The number of decimal digits it has is: 11
• The sum of 72221568640's digits is 43
• More coming soon!