138394275840

Names of 138394275840

• Cardinal: 138394275840 can be written as One hundred thirty-eight billion, three hundred ninety-four million, two hundred seventy-five thousand, eight hundred forty.

Scientific notation

• Scientific notation: 1.3839427584 × 10¹¹

Factors of 138394275840

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 17
• Sum of prime factors: 250289

Divisors of 138394275840

• Number of divisors d(n): 208
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 27 30 32 36 40 45 48 54 60 64 72 80 90 96 108 120 128 135 144 160 180 192 216 240 256 270 288 320 360 384 432 480 512 540 576 640 720 768 864 960 1024 1080 1152 1280 1440 1536 1728 1920 2048 2160 2304 2560 2880 3072 3456 3840 4096 4320 4608 5120 5760 6144 6912 7680 8640 9216 10240 11520 12288 13824 15360 17280 18432 20480 23040 27648 30720 34560 36864 46080 55296 61440 69120 92160 110592 138240 184320 250279 276480 500558 552960 750837 1001116 1251395 1501674 2002232 2252511 2502790 3003348 3754185 4004464 4505022 5005580 6006696 6757533 7508370 8008928 9010044 10011160 11262555 12013392 13515066 15016740 16017856 18020088 20022320 22525110 24026784 27030132 30033480 32035712 33787665 36040176 40044640 45050220 48053568 54060264 60066960 64071424 67575330 72080352 80089280 90100440 96107136 108120528 120133920 128142848 135150660 144160704 160178560 180200880 192214272 216241056 240267840 256285696 270301320 288321408 320357120 360401760 384428544 432482112 480535680 512571392 540602640 576642816 640714240 720803520 768857088 864964224 961071360 1025142784 1081205280 1153285632 1281428480 1441607040 1537714176 1729928448 1922142720 2162410560 2306571264 2562856960 2883214080 3075428352 3459856896 3844285440 4324821120 4613142528 5125713920 5766428160 6919713792 7688570880 8649642240 9226285056 11532856320 13839427584 15377141760 17299284480 23065712640 27678855168 34598568960 46131425280 69197137920 138394275840
• Sum of all divisors σ(n): 492010435200
• Sum of proper divisors (its aliquot sum) s(n): 353616159360
• 138394275840 is an abundant number, because the sum of its proper divisors (353616159360) is greater than itself. Its abundance is 215221883520

Bases of 138394275840

• Binary: 10000000111000111100010001000000000000₂
• Hexadecimal: 0x2038F11000
• Base-36: 1RKSDMO0

Squares and roots of 138394275840

• 138394275840 squared (138394275840²) is 19152975585278007705600
• 138394275840 cubed (138394275840³) is 2650662186305750041494451912704000
• The square root of 138394275840 is 372013.8113565141
• The cube root of 138394275840 is 5172.5660202767

Scales and comparisons

• 138,394,275,840 seconds is equal to 4,400 years, 26 weeks, 3 days, 14 hours, 24 minutes.
• To count from 1 to 138,394,275,840 would take you about eight thousand, eight hundred 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 138394275840 cubic inches would be around 431 feet tall.

Recreational maths with 138394275840

• 138394275840 backwards is 048572493831
• 138394275840 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 138394275840's digits is 54
• More coming soon!