138537455940

Names of 138537455940

• Cardinal: 138537455940 can be written as One hundred thirty-eight billion, five hundred thirty-seven million, four hundred fifty-five thousand, nine hundred forty.

Scientific notation

• Scientific notation: 1.3853745594 × 10¹¹

Factors of 138537455940

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 742

Divisors of 138537455940

• Number of divisors d(n): 432
• Complete list of divisors:
  1 2 3 4 5 6 9 10 12 13 15 18 20 26 30 36 39 41 45 52 60 65 78 82 90 117 123 130 156 164 169 180 195 205 234 246 260 277 338 369 390 401 410 468 492 507 533 554 585 615 676 738 780 802 820 831 845 1014 1066 1108 1170 1203 1230 1385 1476 1521 1599 1604 1662 1690 1845 2005 2028 2132 2340 2406 2460 2493 2535 2665 2770 3042 3198 3324 3380 3601 3609 3690 4010 4155 4797 4812 4986 5070 5213 5330 5540 6015 6084 6396 6929 7202 7218 7380 7605 7995 8020 8310 9594 9972 10140 10426 10660 10803 11357 12030 12465 13858 14404 14436 15210 15639 15990 16441 16620 18005 18045 19188 20787 20852 21606 22714 23985 24060 24930 26065 27716 30420 31278 31980 32409 32882 34071 34645 36010 36090 41574 43212 45428 46813 46917 47970 49323 49860 52130 54015 56785 62361 62556 64818 65764 67769 68142 69290 72020 72180 78195 82205 83148 93626 93834 95940 98646 102213 103935 104260 108030 111077 113570 124722 129636 135538 136284 138580 140439 147641 147969 156390 162045 164410 170355 187252 187668 197292 203307 204426 207870 213733 216060 222154 227140 234065 234585 246615 249444 271076 280878 295282 295938 311805 312780 324090 328820 333231 338845 340710 406614 408852 415740 421317 427466 442923 444308 468130 469170 493230 511065 555385 561756 590564 591876 609921 623610 641199 648180 666462 677690 681420 702195 738205 739845 813228 842634 854932 885846 936260 938340 986460 999693 1016535 1022130 1068665 1110770 1219842 1247220 1282398 1328769 1332924 1355380 1404390 1444001 1476410 1479690 1666155 1685268 1771692 1919333 1923597 1999386 2033070 2044260 2106585 2137330 2214615 2221540 2439684 2564796 2657538 2778529 2808780 2888002 2952820 2959380 3049605 3205995 3332310 3838666 3847194 3998772 4066140 4213170 4274660 4332003 4429230 4554157 4998465 5315076 5557058 5757999 5776004 6099210 6411990 6643845 6664620 7220005 7677332 7694388 8335587 8426340 8664006 8858460 9108314 9596665 9617985 9996930 11114116 11515998 12198420 12823980 12996009 13287690 13662471 13892645 14440010 16671174 17273997 17328012 18216628 18772013 19193330 19235970 19993860 21660015 22770785 23031996 25006761 25992018 26575380 27324942 27785290 28789995 28880020 33342348 34547994 37544026 38386660 38471940 40987413 41677935 43320030 45541570 50013522 51984036 54649884 55570580 56316039 57579990 59204041 64980045 68312355 69095988 75088052 81974826 83355870 86369985 86640060 91083140 93860065 100027044 112632078 115159980 118408082 125033805 129960090 136624710 163949652 166711740 168948117 172739970 177612123 187720130 204937065 225264156 236816164 250067610 259920180 273249420 281580195 296020205 337896234 345479940 355224246 375440260 409874130 500135220 532836369 563160390 592040410 675792468 710448492 769652533 819748260 844740585 888060615 1065672738 1126320780 1184080820 1539305066 1689481170 1776121230 2131345476 2308957599 2664181845 3078610132 3378962340 3552242460 3848262665 4617915198 5328363690 6926872797 7696525330 9235830396 10656727380 11544787995 13853745594 15393050660 23089575990 27707491188 34634363985 46179151980 69268727970 138537455940
• Sum of all divisors σ(n): 468990312336
• Sum of proper divisors (its aliquot sum) s(n): 330452856396
• 138537455940 is an abundant number, because the sum of its proper divisors (330452856396) is greater than itself. Its abundance is 191915400456

Bases of 138537455940

• Binary: 10000001000001011110011101000101000100₂
• Hexadecimal: 0x204179D144
• Base-36: 1RN5MH50

Squares and roots of 138537455940

• 138537455940 squared (138537455940²) is 19192626698327441283600
• 138537455940 cubed (138537455940³) is 2658897675592405568519672044584000
• The square root of 138537455940 is 372206.2008349673
• The cube root of 138537455940 is 5174.3492184515

Scales and comparisons

• 138,537,455,940 seconds is equal to 4,405 years, 3 weeks, 1 day, 18 hours, 39 minutes.
• To count from 1 to 138,537,455,940 would take you about eight thousand, eight hundred ten 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 138537455940 cubic inches would be around 431.2 feet tall.

Recreational maths with 138537455940

• 138537455940 backwards is 049554735831
• The number of decimal digits it has is: 12
• The sum of 138537455940's digits is 54
• More coming soon!