38640406428

Names of 38640406428

• Cardinal: 38640406428 can be written as Thirty-eight billion, six hundred forty million, four hundred six thousand, four hundred twenty-eight.

Scientific notation

• Scientific notation: 3.8640406428 × 10¹⁰

Factors of 38640406428

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 506

Divisors of 38640406428

• Number of divisors d(n): 384
• Complete list of divisors:
  1 2 3 4 6 9 12 13 17 18 26 27 34 36 39 51 52 54 67 68 73 78 102 108 117 134 146 153 156 201 204 219 221 234 268 292 306 331 351 402 438 442 459 468 603 612 657 662 663 702 804 871 876 884 918 949 993 1139 1206 1241 1314 1324 1326 1404 1742 1809 1836 1898 1971 1986 1989 2278 2412 2482 2613 2628 2652 2847 2979 3417 3484 3618 3723 3796 3942 3972 3978 4303 4556 4891 4964 5226 5627 5694 5958 5967 6834 7236 7446 7839 7884 7956 8541 8606 8937 9782 10251 10452 11169 11254 11388 11916 11934 12909 13668 14673 14807 14892 15678 16133 16881 17082 17212 17874 19564 20502 22177 22338 22508 23517 23868 24163 25623 25818 29346 29614 30753 31356 32266 33507 33762 34164 35748 38727 41004 44019 44354 44421 44676 47034 48326 48399 50643 51246 51636 58692 59228 61506 63583 64532 66531 67014 67524 72489 73151 77454 83147 88038 88708 88842 94068 96652 96798 101286 102492 116181 123012 127166 132057 133062 133263 134028 144978 145197 146302 151929 154908 166294 176076 177684 190749 193596 199593 202572 217467 219453 232362 249441 254332 264114 266124 266526 288301 289956 290394 292604 303858 314119 332588 377009 381498 399186 399789 410771 434934 435591 438906 464724 498882 528228 533052 572247 576602 580788 598779 607716 628238 652401 658359 748323 754018 762996 798372 799578 821542 864903 869868 871182 877812 942357 997764 1080911 1131027 1144494 1153204 1197558 1232313 1256476 1304802 1316718 1496646 1508036 1599156 1618921 1643084 1716741 1729806 1742364 1884714 1975077 2161822 2244969 2262054 2288988 2395116 2464626 2594709 2609604 2633436 2827071 2993292 3237842 3242733 3393081 3433482 3459612 3696939 3769428 3950154 4323644 4489938 4524108 4856763 4901117 4929252 5189418 5340023 5654142 6475684 6485466 6786162 6866964 7393878 7784127 7900308 8481213 8979876 9713526 9728199 9802234 10179243 10378836 10680046 11090817 11308284 12970932 13572324 14570289 14703351 14787756 15568254 16020069 16962426 19427052 19456398 19604468 20358486 21045973 21360092 22181634 27521657 29140578 29184597 29406702 31136508 32040138 33924852 38912796 40716972 42091946 43710867 44110053 44363268 48060207 55043314 58281156 58369194 58813404 63137919 64080276 82564971 84183892 87421734 88220106 96120414 110086628 116738388 126275838 132330159 144180621 165129942 174843468 176440212 189413757 192240828 247694913 252551676 264660318 288361242 330259884 357781541 378827514 495389826 529320636 568241271 576722484 715563082 743084739 757655028 990779652 1073344623 1136482542 1431126164 1486169478 2146689246 2272965084 2972338956 3220033869 4293378492 6440067738 9660101607 12880135476 19320203214 38640406428
• Sum of all divisors σ(n): 117879229440
• Sum of proper divisors (its aliquot sum) s(n): 79238823012
• 38640406428 is an abundant number, because the sum of its proper divisors (79238823012) is greater than itself. Its abundance is 40598416584

Bases of 38640406428

• Binary: 100011111111001001011100111110011100₂
• Hexadecimal: 0x8FF25CF9C
• Base-36: HR1I0F0

Squares and roots of 38640406428

• 38640406428 squared (38640406428²) is 1493081008921023719184
• 38640406428 cubed (38640406428³) is 57693257014636650263097900514752
• The square root of 38640406428 is 196571.6317986907
• The cube root of 38640406428 is 3380.7565276689

Scales and comparisons

• 38,640,406,428 seconds is equal to 1,228 years, 33 weeks, 3 days, 22 hours, 13 minutes, 48 seconds.
• To count from 1 to 38,640,406,428 would take you about two thousand, four hundred fifty-seven 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 38640406428 cubic inches would be around 281.7 feet tall.

Recreational maths with 38640406428

• 38640406428 backwards is 82460404683
• The number of decimal digits it has is: 11
• The sum of 38640406428's digits is 45
• More coming soon!