38394738720

Names of 38394738720

• Cardinal: 38394738720 can be written as Thirty-eight billion, three hundred ninety-four million, seven hundred thirty-eight thousand, seven hundred twenty.

Scientific notation

• Scientific notation: 3.839473872 × 10¹⁰

Factors of 38394738720

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 25344

Divisors of 38394738720

• Number of divisors d(n): 336
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 13 15 16 18 20 24 26 27 30 32 36 39 40 45 48 52 54 60 65 72 78 80 81 90 96 104 108 117 120 130 135 144 156 160 162 180 195 208 216 234 240 243 260 270 288 312 324 351 360 390 405 416 432 468 480 486 520 540 585 624 648 702 720 729 780 810 864 936 972 1040 1053 1080 1170 1215 1248 1296 1404 1440 1458 1560 1620 1755 1872 1944 2080 2106 2160 2340 2430 2592 2808 2916 3120 3159 3240 3510 3645 3744 3888 4212 4320 4680 4860 5265 5616 5832 6240 6318 6480 7020 7290 7776 8424 9360 9477 9720 10530 11232 11664 12636 12960 14040 14580 15795 16848 18720 18954 19440 21060 23328 25272 25321 28080 29160 31590 33696 37908 38880 42120 47385 50544 50642 56160 58320 63180 75816 75963 84240 94770 101088 101284 116640 126360 126605 151632 151926 168480 189540 202568 227889 252720 253210 303264 303852 329173 379080 379815 405136 455778 505440 506420 607704 658346 683667 758160 759630 810272 911556 987519 1012840 1139445 1215408 1316692 1367334 1516320 1519260 1645865 1823112 1975038 2025680 2051001 2278890 2430816 2633384 2734668 2962557 3038520 3291730 3418335 3646224 3950076 4051360 4102002 4557780 4937595 5266768 5469336 5925114 6077040 6153003 6583460 6836670 7292448 7900152 8204004 8887671 9115560 9875190 10255005 10533536 10938672 11850228 12154080 12306006 13166920 13673340 14812785 15800304 16408008 17775342 18231120 18459009 19750380 20510010 21877344 23700456 24612012 26333840 26663013 27346680 29625570 30765015 31600608 32816016 35550684 36462240 36918018 39500760 41020020 44438355 47400912 49224024 52667680 53326026 54693360 59251140 61530030 65632032 71101368 73836036 79001520 79989039 82040040 88876710 92295045 94801824 98448048 106652052 109386720 118502280 123060060 133315065 142202736 147672072 158003040 159978078 164080080 177753420 184590090 196896096 213304104 237004560 239967117 246120120 266630130 284405472 295344144 319956156 328160160 355506840 369180180 399945195 426608208 474009120 479934234 492240240 533260260 590688288 639912312 711013680 738360360 799890390 853216416 959868468 984480480 1066520520 1199835585 1279824624 1422027360 1476720720 1599780780 1919736936 2133041040 2399671170 2559649248 2953441440 3199561560 3839473872 4266082080 4799342340 6399123120 7678947744 9598684680 12798246240 19197369360 38394738720
• Sum of all divisors σ(n): 146466398232
• Sum of proper divisors (its aliquot sum) s(n): 108071659512
• 38394738720 is an abundant number, because the sum of its proper divisors (108071659512) is greater than itself. Its abundance is 69676920792

Bases of 38394738720

• Binary: 100011110000100000010011100000100000₂
• Hexadecimal: 0x8F0813820
• Base-36: HMZ8I00

Squares and roots of 38394738720

• 38394738720 squared (38394738720²) is 1474155961377067238400
• 38394738720 cubed (38394738720³) is 56599832969602908018239950848000
• The square root of 38394738720 is 195945.7545342587
• The cube root of 38394738720 is 3373.5765730787

Scales and comparisons

• 38,394,738,720 seconds is equal to 1,220 years, 43 weeks, 2 days, 13 hours, 12 minutes.
• To count from 1 to 38,394,738,720 would take you about two thousand, four hundred forty-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 38394738720 cubic inches would be around 281.1 feet tall.

Recreational maths with 38394738720

• 38394738720 backwards is 02783749383
• 38394738720 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 38394738720's digits is 54
• More coming soon!