638049136608

Names of 638049136608

• Cardinal: 638049136608 can be written as Six hundred thirty-eight billion, forty-nine million, one hundred thirty-six thousand, six hundred eight.

Scientific notation

• Scientific notation: 6.38049136608 × 10¹¹

Factors of 638049136608

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 7555

Divisors of 638049136608

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 3 4 6 8 9 12 13 16 18 24 26 27 32 36 39 48 52 54 72 78 96 104 108 117 144 156 208 216 234 288 312 351 416 432 468 624 702 864 936 1248 1404 1872 2808 3744 5616 7537 11232 15074 22611 30148 45222 60296 67833 90444 97981 120592 135666 180888 195962 203499 241184 271332 293943 361776 391924 406998 542664 587886 723552 783848 813996 881829 1085328 1175772 1567696 1627992 1763658 2170656 2351544 2645487 3135392 3255984 3527316 4703088 5290974 6511968 7054632 9406176 10581948 14109264 21163896 28218528 42327792 56806369 84655584 113612738 170419107 227225476 340838214 454450952 511257321 681676428 738482797 908901904 1022514642 1363352856 1476965594 1533771963 1817803808 2045029284 2215448391 2726705712 2953931188 3067543926 4090058568 4430896782 5453411424 5907862376 6135087852 6646345173 8180117136 8861793564 11815724752 12270175704 13292690346 16360234272 17723587128 19939035519 23631449504 24540351408 26585380692 35447174256 39878071038 49080702816 53170761384 70894348512 79756142076 106341522768 159512284152 212683045536 319024568304 638049136608
• Sum of all divisors σ(n): 2004394638960
• Sum of proper divisors (its aliquot sum) s(n): 1366345502352
• 638049136608 is an abundant number, because the sum of its proper divisors (1366345502352) is greater than itself. Its abundance is 728296365744

Bases of 638049136608

• Binary: 1001010010001110101100010010111111100000₂
• Hexadecimal: 0x948EB12FE0
• Base-36: 8545ZCO0

Squares and roots of 638049136608

• 638049136608 squared (638049136608²) is 407106700726214245745664
• 638049136608 cubed (638049136608³) is 259754078905692446090450852359667712
• The square root of 638049136608 is 798779.7797941557
• The cube root of 638049136608 is 8608.9735818279

Scales and comparisons

• 638,049,136,608 seconds is equal to 20,287 years, 51 weeks, 2 days, 23 hours, 16 minutes, 48 seconds.
• To count from 1 to 638,049,136,608 would take you about forty thousand, five hundred seventy-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 638049136608 cubic inches would be around 717.4 feet tall.

Recreational maths with 638049136608

• 638049136608 backwards is 806631940836
• 638049136608 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 638049136608's digits is 54
• More coming soon!