38645638920

Names of 38645638920

• Cardinal: 38645638920 can be written as Thirty-eight billion, six hundred forty-five million, six hundred thirty-eight thousand, nine hundred twenty.

Scientific notation

• Scientific notation: 3.864563892 × 10¹⁰

Factors of 38645638920

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 16975

Divisors of 38645638920

• Number of divisors d(n): 256
• Complete list of divisors:
  1 2 3 4 5 6 7 8 9 10 12 14 15 18 20 21 24 27 28 30 35 36 40 42 45 54 56 60 63 70 72 84 90 105 108 120 126 135 140 168 180 189 210 216 252 270 280 307 315 360 378 420 504 540 614 630 756 840 921 945 1080 1228 1260 1512 1535 1842 1890 2149 2456 2520 2763 3070 3684 3780 4298 4605 5526 6140 6447 7368 7560 8289 8596 9210 10745 11052 12280 12894 13815 16578 16651 17192 18420 19341 21490 22104 25788 27630 32235 33156 33302 36840 38682 41445 42980 49953 51576 55260 58023 64470 66312 66604 77364 82890 83255 85960 96705 99906 110520 116046 116557 128940 133208 149859 154728 165780 166510 193410 199812 232092 233114 249765 257880 290115 299718 331560 333020 349671 386820 399624 449577 464184 466228 499530 580230 582785 599436 666040 699342 749295 773640 899154 932456 999060 1049013 1160460 1165570 1198872 1398684 1498590 1748355 1798308 1998120 2098026 2247885 2320920 2331140 2797368 2997180 3147039 3496710 3596616 4196052 4495770 4662280 5111857 5245065 5994360 6294078 6993420 8392104 8991540 10223714 10490130 12588156 13986840 15335571 15735195 17983080 20447428 20980260 25176312 25559285 30671142 31470390 35782999 40894856 41960520 46006713 51118570 61342284 62940780 71565998 76677855 92013426 102237140 107348997 122684568 125881560 138020139 143131996 153355710 178914995 184026852 204474280 214697994 230033565 276040278 286263992 306711420 322046991 357829990 368053704 429395988 460067130 536744985 552080556 613422840 644093982 690100695 715659980 858791976 920134260 966140973 1073489970 1104161112 1288187964 1380201390 1431319960 1610234955 1840268520 1932281946 2146979940 2576375928 2760402780 3220469910 3864563892 4293959880 4830704865 5520805560 6440939820 7729127784 9661409730 12881879640 19322819460 38645638920
• Sum of all divisors σ(n): 147709900800
• Sum of proper divisors (its aliquot sum) s(n): 109064261880
• 38645638920 is an abundant number, because the sum of its proper divisors (109064261880) is greater than itself. Its abundance is 70418622960

Bases of 38645638920

• Binary: 100011111111011101011010011100001000₂
• Hexadecimal: 0x8FF75A708
• Base-36: HR4M5U0

Squares and roots of 38645638920

• 38645638920 squared (38645638920²) is 1493485407535018766400
• 38645638920 cubed (38645638920³) is 57716697791887382501718228288000
• The square root of 38645638920 is 196584.9407253771
• The cube root of 38645638920 is 3380.9091225359

Scales and comparisons

• 38,645,638,920 seconds is equal to 1,228 years, 42 weeks, 1 day, 11 hours, 42 minutes.
• To count from 1 to 38,645,638,920 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 38645638920 cubic inches would be around 281.7 feet tall.

Recreational maths with 38645638920

• 38645638920 backwards is 02983654683
• 38645638920 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 38645638920's digits is 54
• More coming soon!