644420000070

Names of 644420000070

• Cardinal: 644420000070 can be written as Six hundred forty-four billion, four hundred twenty million and seventy.

Scientific notation

• Scientific notation: 6.4442000007 × 10¹¹

Factors of 644420000070

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 10332239

Divisors of 644420000070

• Number of divisors d(n): 160
• Complete list of divisors:
  1 2 3 5 6 7 9 10 11 14 15 18 21 22 27 30 33 35 42 45 54 55 63 66 70 77 81 90 99 105 110 126 135 154 162 165 189 198 210 231 270 297 315 330 378 385 405 462 495 567 594 630 693 770 810 891 945 990 1134 1155 1386 1485 1782 1890 2079 2310 2835 2970 3465 4158 4455 5670 6237 6930 8910 10395 12474 20790 31185 62370 10332211 20664422 30996633 51661055 61993266 72325477 92989899 103322110 113654321 144650954 154983165 185979798 216976431 227308642 278969697 309966330 340962963 361627385 433952862 464949495 557939394 568271605 650929293 681925926 723254770 795580247 836909091 929898990 1022888889 1084882155 1136543210 1301858586 1394848485 1591160494 1673818182 1704814815 1952787879 2045777778 2169764310 2386740741 2789696970 3068666667 3254646465 3409629630 3905575758 3977901235 4184545455 4773481482 5114444445 5858363637 6137333334 6509292930 7160222223 7955802470 8369090910 9206000001 9763939395 10228888890 11716727274 11933703705 14320444446 15343333335 18412000002 19527878790 21480666669 23867407410 29291818185 30686666670 35801111115 42961333338 46030000005 58583636370 64442000007 71602222230 92060000010 107403333345 128884000014 214806666690 322210000035 644420000070
• Sum of all divisors σ(n): 2160341542656
• Sum of proper divisors (its aliquot sum) s(n): 1515921542586
• 644420000070 is an abundant number, because the sum of its proper divisors (1515921542586) is greater than itself. Its abundance is 871501542516

Bases of 644420000070

• Binary: 1001011000001010011011001101100101000110₂
• Hexadecimal: 0x960A6CD946
• Base-36: 881J12DI

Squares and roots of 644420000070

• 644420000070 squared (644420000070²) is 415277136490218800004900
• 644420000070 cubed (644420000070³) is 267612892326096198653472974000343000
• The square root of 644420000070 is 802757.7468140685
• The cube root of 644420000070 is 8637.5320171749

Scales and comparisons

• 644,420,000,070 seconds is equal to 20,490 years, 29 weeks, 1 day, 19 hours, 34 minutes, 30 seconds.
• To count from 1 to 644,420,000,070 would take you about forty thousand, nine hundred eighty-one 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 644420000070 cubic inches would be around 719.8 feet tall.

Recreational maths with 644420000070

• 644420000070 backwards is 070000024446
• 644420000070 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 644420000070's digits is 27
• More coming soon!