138997993750

Names of 138997993750

• Cardinal: 138997993750 can be written as One hundred thirty-eight billion, nine hundred ninety-seven million, nine hundred ninety-three thousand, seven hundred fifty.

Scientific notation

• Scientific notation: 1.3899799375 × 10¹¹

Factors of 138997993750

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 56

Divisors of 138997993750

• Number of divisors d(n): 360
• Complete list of divisors:
  1 2 5 7 10 11 14 22 25 31 35 49 50 55 62 70 77 98 110 121 125 154 155 175 217 242 245 250 275 310 341 350 385 434 490 539 550 605 625 682 770 775 847 875 1078 1085 1210 1225 1250 1331 1375 1519 1550 1694 1705 1750 1925 2170 2387 2450 2662 2695 2750 3025 3038 3125 3410 3751 3850 3875 4235 4375 4774 5390 5425 5929 6050 6125 6250 6655 6875 7502 7595 7750 8470 8525 8750 9317 9625 10850 11858 11935 12250 13310 13475 13750 14641 15125 15190 16709 17050 18634 18755 19250 19375 21175 21875 23870 26257 26950 27125 29282 29645 30250 30625 33275 33418 34375 37510 37975 38750 41261 42350 42625 43750 46585 48125 52514 54250 59290 59675 61250 65219 66550 67375 68750 73205 75625 75950 82522 83545 85250 93170 93775 96250 96875 102487 105875 119350 130438 131285 134750 135625 146410 148225 151250 153125 166375 167090 183799 187550 189875 193750 204974 206305 211750 213125 232925 240625 262570 271250 288827 296450 298375 306250 326095 332750 336875 366025 367598 378125 379750 412610 417725 426250 453871 465850 468875 481250 512435 529375 577654 596750 652190 656425 673750 678125 717409 732050 741125 756250 831875 835450 907742 918995 937750 949375 1024870 1031525 1058750 1065625 1164625 1312850 1356250 1434818 1444135 1482250 1491875 1630475 1663750 1684375 1830125 1837990 1898750 2021789 2063050 2088625 2131250 2269355 2329250 2344375 2562175 2646875 2888270 2983750 3177097 3260950 3282125 3368750 3587045 3660250 3705625 4043578 4159375 4177250 4538710 4594975 4688750 4746875 5124350 5157625 5293750 5823125 6354194 6564250 7174090 7220675 7411250 7459375 8152375 8318750 9150625 9189950 9493750 10108945 10315250 10443125 11346775 11646250 11721875 12810875 14441350 14918750 15885485 16304750 16410625 17935225 18301250 18528125 20217890 20886250 22239679 22693550 22974875 23443750 25621750 25788125 29115625 31770970 32821250 35870450 36103375 37056250 40761875 44479358 45753125 45949750 50544725 51576250 52215625 56733875 58231250 64054375 72206750 79427425 81523750 82053125 89676125 91506250 101089450 104431250 111198395 113467750 114874375 128108750 128940625 158854850 164106250 179352250 180516875 203809375 222396790 229748750 252723625 257881250 283669375 320271875 361033750 397137125 407618750 448380625 505447250 555991975 567338750 574371875 640543750 794274250 896761250 902584375 1111983950 1148743750 1263618125 1418346875 1805168750 1985685625 2241903125 2527236250 2779959875 2836693750 3971371250 4483806250 5559919750 6318090625 9928428125 12636181250 13899799375 19856856250 27799598750 69498996875 138997993750
• Sum of all divisors σ(n): 344222343360
• Sum of proper divisors (its aliquot sum) s(n): 205224349610
• 138997993750 is an abundant number, because the sum of its proper divisors (205224349610) is greater than itself. Its abundance is 66226355860

Bases of 138997993750

• Binary: 10000001011100111011010001000100010110₂
• Hexadecimal: 0x205CED1116
• Base-36: 1RURTEDY

Squares and roots of 138997993750

• 138997993750 squared (138997993750²) is 19320442266525039062500
• 138997993750 cubed (138997993750³) is 2685502713409683213827880859375000
• The square root of 138997993750 is 372824.3470456293
• The cube root of 138997993750 is 5180.0765450095

Scales and comparisons

• 138,997,993,750 seconds is equal to 4,419 years, 36 weeks, 5 days, 1 hour, 49 minutes, 10 seconds.
• To count from 1 to 138,997,993,750 would take you about eight thousand, eight hundred thirty-nine 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 138997993750 cubic inches would be around 431.7 feet tall.

Recreational maths with 138997993750

• 138997993750 backwards is 057399799831
• 138997993750 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 138997993750's digits is 70
• More coming soon!