638140632675

Names of 638140632675

• Cardinal: 638140632675 can be written as Six hundred thirty-eight billion, one hundred forty million, six hundred thirty-two thousand, six hundred seventy-five.

Scientific notation

• Scientific notation: 6.38140632675 × 10¹¹

Factors of 638140632675

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 693

Divisors of 638140632675

• Number of divisors d(n): 432
• Complete list of divisors:
  1 3 5 7 13 15 17 21 25 35 39 41 51 65 75 85 91 105 119 123 169 175 195 205 221 255 273 287 289 325 357 425 455 507 525 533 595 607 615 663 697 845 861 867 975 1025 1105 1183 1275 1365 1435 1445 1547 1599 1785 1821 2023 2091 2275 2535 2665 2873 2975 3035 3075 3315 3485 3549 3731 3757 4225 4249 4305 4335 4641 4879 5525 5915 6069 6825 6929 7175 7225 7735 7891 7995 8619 8925 9061 9105 10115 10319 10455 11193 11271 11849 12675 12747 13325 14365 14637 15175 16575 17425 17745 18655 18785 20111 20787 21245 21525 21675 23205 23673 24395 24887 26299 27183 29575 30345 30957 34645 35547 38675 39455 39975 43095 45305 45525 48503 48841 50575 51595 52275 55237 55965 56355 59245 60333 63427 63735 71825 72233 73185 74661 78897 82943 88725 93275 93925 100555 102583 103935 106225 116025 117793 118365 121975 124435 131495 134147 135915 145509 146523 151725 154037 154785 165711 173225 174209 175423 177735 190281 197275 215475 216699 226525 242515 244205 248829 257975 276185 279825 281775 296225 301665 307749 317135 318675 323531 341887 353379 361165 365925 373305 394485 402441 414715 423079 462111 502775 512915 519675 522627 526269 588965 591825 622175 657475 670735 679575 718081 727545 732615 770185 773925 824551 828555 871045 877115 888675 939029 951405 970593 1025661 1078259 1083495 1212575 1221025 1227961 1244145 1269237 1380925 1508325 1538745 1585675 1617655 1709435 1743911 1766895 1805825 1866525 1972425 2002481 2012205 2073575 2115395 2154243 2264717 2280499 2310555 2473653 2564575 2613135 2631345 2817087 2944825 2961553 3234777 3353675 3590405 3637725 3663075 3683883 3850925 4122755 4142775 4205903 4355225 4385575 4695145 4757025 4852965 5128305 5231733 5391295 5417475 5500027 6007443 6139805 6220725 6346185 6794151 6841497 7192343 7693725 8088275 8547175 8719555 8834475 8884659 10012405 10061025 10576975 10771215 11323585 11402495 11552775 12207377 12368265 12617709 13065675 13156725 14017367 14085435 14807765 15963493 16173885 16500081 17952025 18419415 20613775 21029515 21577029 23475725 24264825 25641525 26158665 26956475 27500135 29441321 29646487 30037215 30699025 31730925 33970755 34207485 35961715 36622131 38500189 42052101 43597775 44423295 47890479 50062025 50346401 53856075 56617925 57012475 61036885 61841325 63088545 70086835 70427175 71500351 74038825 79817465 80869425 82500405 88323963 88939461 92097075 93500459 105147575 107885145 115500567 130793325 137500675 147206605 148232435 150186075 151039203 169853775 171037425 179808575 183110655 192500945 207525409 210260505 214501053 222116475 239452395 251732005 280501377 305184425 315442725 350434175 357501755 399087325 412502025 441619815 444697305 467502295 500502457 539425725 577502835 622576227 654503213 736033025 741162175 755196015 915553275 962504725 1037627045 1051302525 1072505265 1197261975 1215505967 1258660025 1402506885 1501507371 1787508775 1963509639 2208099075 2223486525 2337511475 2502512285 2887514175 3112881135 3272516065 3646517901 3775980075 5188135225 5362526325 6077529835 7012534425 7507536855 8508541769 9817548195 12512561425 15564405675 16362580325 18232589505 25525625307 30387649175 37537684275 42542708845 49087740975 91162947525 127628126535 212713544225 638140632675
• Sum of all divisors σ(n): 1423160911872
• Sum of proper divisors (its aliquot sum) s(n): 785020279197
• 638140632675 is an abundant number, because the sum of its proper divisors (785020279197) is greater than itself. Its abundance is 146879646522

Bases of 638140632675

• Binary: 1001010010010100001001010100111001100011₂
• Hexadecimal: 0x9494254E63
• Base-36: 855OGFHF

Squares and roots of 638140632675

• 638140632675 squared (638140632675²) is 407223467070849277655625
• 638140632675 cubed (638140632675³) is 259865840916698787092727278272546875
• The square root of 638140632675 is 798837.0501391381
• The cube root of 638140632675 is 8609.3850702909

Scales and comparisons

• 638,140,632,675 seconds is equal to 20,290 years, 46 weeks, 4 days, 22 hours, 51 minutes, 15 seconds.
• To count from 1 to 638,140,632,675 would take you about forty thousand, five 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 638140632675 cubic inches would be around 717.4 feet tall.

Recreational maths with 638140632675

• 638140632675 backwards is 576236041836
• 638140632675 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 638140632675's digits is 51
• More coming soon!