155138209408

Names of 155138209408

• Cardinal: 155138209408 can be written as One hundred fifty-five billion, one hundred thirty-eight million, two hundred nine thousand, four hundred eight.

Scientific notation

• Scientific notation: 1.55138209408 × 10¹¹

Factors of 155138209408

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 396

Divisors of 155138209408

• Number of divisors d(n): 512
• Complete list of divisors:
  1 2 4 7 8 13 14 16 17 26 28 31 32 34 52 56 62 64 68 91 104 112 119 124 127 128 136 182 199 208 217 221 224 238 248 254 272 364 398 403 416 434 442 448 476 496 508 527 544 728 796 806 832 868 884 889 896 952 992 1016 1054 1088 1393 1456 1547 1592 1612 1651 1664 1736 1768 1778 1904 1984 2032 2108 2159 2176 2587 2786 2821 2912 3094 3184 3224 3302 3383 3472 3536 3556 3689 3808 3937 3968 4064 4216 4318 5174 5572 5642 5824 6169 6188 6368 6448 6604 6766 6851 6944 7072 7112 7378 7616 7874 8128 8432 8636 10348 11144 11284 11557 11648 12338 12376 12736 12896 13208 13532 13702 13888 14144 14224 14756 15113 15232 15748 16256 16864 17272 18109 20696 22288 22568 23114 23681 24676 24752 25273 25472 25792 26416 27064 27404 27559 27776 28067 28288 28448 29512 30226 31496 33728 34544 36218 41392 43183 43979 44576 45136 46228 47362 47957 49352 49504 50546 51181 51584 52832 54128 54808 55118 56134 56896 59024 60452 62992 66929 67456 69088 72436 80197 82784 86366 87958 89152 90272 92456 94724 95914 98704 99008 101092 102362 104873 105664 108256 109616 110236 112268 113792 118048 120904 125984 133858 138176 144872 160394 165568 172732 175916 176911 178304 180544 184912 189448 191828 196469 197408 198016 202184 204724 209746 211328 216512 219232 220472 224536 236096 241808 251968 267716 276352 289744 307853 320788 328549 331136 345464 351832 353822 358267 361088 369824 378896 383656 392938 394816 404368 409448 419492 429641 433024 438464 440944 449072 468503 472192 483616 503936 535432 561379 579488 615706 641576 657098 690928 703664 707644 716534 734111 739648 757792 767312 783463 785876 789632 808736 818896 838984 859282 870077 876928 881888 898144 937006 967232 1070864 1122758 1158976 1231412 1283152 1314196 1363349 1381856 1407328 1415288 1433068 1468222 1479296 1515584 1534624 1566926 1571752 1617472 1637792 1677968 1718564 1740154 1763776 1796288 1874012 1934464 2141728 2245516 2299843 2317952 2462824 2566304 2628392 2726698 2763712 2814656 2830576 2866136 2936444 3007487 3031168 3069248 3133852 3143504 3234944 3275584 3355936 3437128 3480308 3527552 3592576 3748024 4283456 4491032 4599686 4925648 5132608 5256784 5453396 5484241 5527424 5585333 5629312 5661152 5732272 5872888 6014974 6090539 6138496 6267704 6287008 6551168 6711872 6874256 6960616 7496048 8566912 8982064 9199372 9543443 9851296 10185019 10265216 10513568 10906792 10968482 11170666 11322304 11464544 11745776 12029948 12181078 12535408 12574016 13318871 13423744 13748512 13921232 14992096 17964128 18398744 19086886 19702592 20370038 21027136 21813584 21936964 22341332 22644608 22929088 23491552 24059896 24362156 25070816 25148032 26637742 27497024 27842464 29984192 35928256 36797488 38173772 39097331 39405184 40740076 42054272 43627168 43873928 44682664 45858176 46983104 48119792 48724312 50141632 53275484 54994048 55684928 59968384 71295133 71856512 73594976 76347544 78194662 81480152 87254336 87747856 89365328 93232097 93966208 96239584 97448624 100283264 106550968 111369856 142590266 147189952 152695088 156389324 162960304 173145323 174508672 175495712 178730656 186464194 192479168 194897248 213101936 285180532 294379904 305390176 312778648 325920608 346290646 350991424 357461312 372928388 384958336 389794496 426203872 570361064 610780352 625557296 651841216 692581292 701982848 714922624 745856776 779588992 852407744 1140722128 1212017261 1221560704 1251114592 1303682432 1385162584 1491713552 1704815488 2281444256 2424034522 2502229184 2770325168 2983427104 4562888512 4848069044 5004458368 5540650336 5966854208 9125777024 9696138088 11081300672 11933708416 19392276176 22162601344 38784552352 77569104704 155138209408
• Sum of all divisors σ(n): 421134336000
• Sum of proper divisors (its aliquot sum) s(n): 265996126592
• 155138209408 is an abundant number, because the sum of its proper divisors (265996126592) is greater than itself. Its abundance is 110857917184

Bases of 155138209408

• Binary: 10010000011110111101010011011010000000₂
• Hexadecimal: 0x241EF53680
• Base-36: 1Z9PA8HS

Squares and roots of 155138209408

• 155138209408 squared (155138209408²) is 24067864018320459710464
• 155138209408 cubed (155138209408³) is 3733845328077467827012791080845312
• The square root of 155138209408 is 393875.8807137091
• The cube root of 155138209408 is 5373.2814773049

Scales and comparisons

• 155,138,209,408 seconds is equal to 4,932 years, 47 weeks, 4 days, 3 hours, 3 minutes, 28 seconds.
• To count from 1 to 155,138,209,408 would take you about nine thousand, eight hundred sixty-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 155138209408 cubic inches would be around 447.8 feet tall.

Recreational maths with 155138209408

• 155138209408 backwards is 804902831551
• The number of decimal digits it has is: 12
• The sum of 155138209408's digits is 46
• More coming soon!