138155331930

Names of 138155331930

• Cardinal: 138155331930 can be written as One hundred thirty-eight billion, one hundred fifty-five million, three hundred thirty-one thousand, nine hundred thirty.

Scientific notation

• Scientific notation: 1.3815533193 × 10¹¹

Factors of 138155331930

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 144

Divisors of 138155331930

• Number of divisors d(n): 432
• Complete list of divisors:
  1 2 3 5 6 7 10 11 14 15 21 22 30 33 35 37 42 49 55 66 70 74 77 79 98 105 110 111 147 154 158 165 185 210 222 231 237 245 259 294 330 370 385 395 407 462 474 490 518 539 553 555 735 770 777 790 814 869 1078 1106 1110 1155 1185 1221 1295 1369 1470 1554 1617 1659 1738 1813 2035 2310 2370 2442 2590 2607 2695 2738 2765 2849 2923 3234 3318 3626 3871 3885 4070 4107 4345 5214 5390 5439 5530 5698 5846 6083 6105 6241 6845 7742 7770 8085 8214 8295 8547 8690 8769 9065 9583 10878 11613 12166 12210 12482 13035 13690 14245 14615 15059 16170 16590 17094 17538 18130 18249 18723 19166 19355 19943 20461 20535 23226 26070 27195 28490 28749 29230 30118 30415 31205 32153 36498 37446 38710 39886 40922 41070 42581 42735 43687 43845 45177 47915 54390 57498 58065 59829 60830 61383 62410 64306 67081 68651 75295 85162 85470 87374 87690 90354 91245 93615 95830 96459 99715 102305 105413 108151 116130 119658 122766 127743 131061 134162 137302 143227 143745 150590 160765 182490 187230 192918 199430 201243 204610 205953 210826 212905 216302 218435 225071 225885 230917 255486 262122 286454 287490 299145 305809 306915 316239 321530 324453 335405 343255 402486 411906 425810 429681 436870 450142 451770 461834 480557 482295 527065 540755 598290 611618 613830 632478 638715 648906 655305 670810 675213 686510 692751 716135 737891 757057 859362 917427 961114 964590 1006215 1029765 1054130 1081510 1125355 1154585 1189661 1277430 1310610 1350426 1385502 1432270 1441671 1475782 1514114 1529045 1575497 1581195 1616419 1622265 1834854 2012430 2059530 2148405 2213673 2250710 2271171 2309170 2379322 2402785 2540087 2883342 3058090 3150994 3162390 3232838 3244530 3363899 3376065 3463755 3568983 3689455 3785285 4296810 4427346 4542342 4587135 4726491 4805570 4849257 5080174 5299399 5948305 6727798 6752130 6927510 7137966 7208355 7378910 7570570 7620261 7877485 8082095 8327627 8543929 9174270 9452982 9698514 10091697 10598798 11068365 11314933 11355855 11896610 12700435 14416710 15240522 15754970 15898197 16164190 16655254 16819495 17087858 17780609 17844915 20183394 22136730 22629866 22711710 23632455 24246285 24982881 25400870 25631787 26496995 31796394 33638990 33944799 35561218 35689830 38101305 41638135 42719645 47264910 48492570 49965762 50458485 51263574 52993990 53341827 56574665 58293389 59807503 67889598 76202610 79490985 83276270 85439290 88903045 93983219 100916970 106683654 113149330 116586778 119615006 124464263 124914405 128158935 158981970 169723995 174880167 177806090 179422509 187966438 248928526 249828810 256317870 266709135 281949657 291466945 299037515 339447990 349760334 358845018 373392789 418652521 469916095 533418270 563899314 582933890 598075030 622321315 657882533 746785578 837305042 874400835 897112545 939832190 1244642630 1255957563 1315765066 1409748285 1748801670 1794225090 1866963945 1973647599 2093262605 2511915126 2819496570 3289412665 3733927890 3947295198 4186525210 4605177731 6279787815 6578825330 9210355462 9868237995 12559575630 13815533193 19736475990 23025888655 27631066386 46051777310 69077665965 138155331930
• Sum of all divisors σ(n): 437994327456
• Sum of proper divisors (its aliquot sum) s(n): 299838995526
• 138155331930 is an abundant number, because the sum of its proper divisors (299838995526) is greater than itself. Its abundance is 161683663596

Bases of 138155331930

• Binary: 10000000101010101100110001000101011010₂
• Hexadecimal: 0x202AB3115A
• Base-36: 1RGU48D6

Squares and roots of 138155331930

• 138155331930 squared (138155331930²) is 19086895740688477524900
• 138155331930 cubed (138155331930³) is 2636956416568119819178904340057000
• The square root of 138155331930 is 371692.5233711327
• The cube root of 138155331930 is 5169.5874164903

Scales and comparisons

• 138,155,331,930 seconds is equal to 4,392 years, 47 weeks, 3 days, 1 hour, 5 minutes, 30 seconds.
• To count from 1 to 138,155,331,930 would take you about eight thousand, seven hundred eighty-five 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 138155331930 cubic inches would be around 430.8 feet tall.

Recreational maths with 138155331930

• 138155331930 backwards is 039133551831
• 138155331930 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 138155331930's digits is 42
• More coming soon!