138315881655

Names of 138315881655

• Cardinal: 138315881655 can be written as One hundred thirty-eight billion, three hundred fifteen million, eight hundred eighty-one thousand, six hundred fifty-five.

Scientific notation

• Scientific notation: 1.38315881655 × 10¹¹

Factors of 138315881655

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 136

Divisors of 138315881655

• Number of divisors d(n): 324
• Complete list of divisors:
  1 3 5 7 9 15 19 21 23 35 45 49 57 63 69 79 95 105 115 133 147 161 171 207 237 245 285 315 345 395 399 437 441 483 529 553 665 711 735 805 855 931 1035 1127 1185 1197 1311 1449 1501 1587 1659 1817 1995 2185 2205 2415 2645 2765 2793 3059 3381 3555 3703 3871 3933 4503 4655 4761 4977 5451 5635 5985 6241 6555 7245 7505 7935 8295 8379 9085 9177 10051 10143 10507 11109 11613 12719 13509 13965 15295 16353 16905 18515 18723 19355 19665 21413 22515 23805 24885 25921 27255 27531 30153 31205 31521 33327 34523 34839 38157 41791 41895 43687 45885 50255 50715 52535 55545 56169 58065 63595 64239 67545 70357 73549 77763 81765 89033 90459 93615 94563 103569 107065 114471 118579 125373 129605 131061 137655 143543 150765 157605 166635 172615 174195 190785 192717 208955 211071 218435 220647 233289 241661 267099 280845 292537 305809 310707 321195 351785 355737 367745 376119 388815 393183 430629 445165 452295 472815 492499 517845 572355 592895 626865 633213 655305 661941 717715 724983 794029 801297 830053 877611 917427 963585 1004801 1055355 1067211 1103235 1166445 1208305 1291887 1335495 1462685 1477497 1529045 1553535 1691627 1778685 1880595 1965915 2047759 2153145 2174949 2382087 2462495 2490159 2632833 2727317 2752281 3014403 3166065 3301489 3309705 3624915 3970145 4006485 4150265 4388055 4432491 4587135 5024005 5074881 5336055 5558203 5810371 6143277 6459435 7033607 7146261 7387485 7470477 8181951 8458135 9043209 9904467 10238795 10874745 11910435 12450795 13164165 13636585 13761405 15072015 15224643 16507445 16674609 17431113 18429831 19091219 21100821 22162455 23110423 24545853 25374405 27791015 29051855 29713401 30716385 35168035 35731305 37352385 38907421 40909755 45216045 49522335 50023827 52293339 57273657 62728291 63302463 69331269 76123215 83373045 87155565 92149155 95456095 105504105 115552115 116722263 122729265 133638533 148567005 161772961 171820971 188184873 194537105 207993807 250119135 261466695 286368285 313641455 316512315 346656345 350166789 400915599 439098037 485318883 564554619 583611315 668192665 808864805 859104855 940924365 1039969035 1202746797 1317294111 1455956649 1750833945 2004577995 2195490185 2426594415 2822773095 3073686259 3951882333 6013733985 6586470555 7279783245 9221058777 15368431295 19759411665 27663176331 46105293885 138315881655
• Sum of all divisors σ(n): 310821015960
• Sum of proper divisors (its aliquot sum) s(n): 172505134305
• 138315881655 is an abundant number, because the sum of its proper divisors (172505134305) is greater than itself. Its abundance is 34189252650

Bases of 138315881655

• Binary: 10000000110100010001001101110010110111₂
• Hexadecimal: 0x203444DCB7
• Base-36: 1RJHPDBR

Squares and roots of 138315881655

• 138315881655 squared (138315881655²) is 19131283117999965539025
• 138315881655 cubed (138315881655³) is 2646160291657582633789860184086375
• The square root of 138315881655 is 371908.4318148757
• The cube root of 138315881655 is 5171.5891598181

Scales and comparisons

• 138,315,881,655 seconds is equal to 4,398 years, 6 days, 6 hours, 14 minutes, 15 seconds.
• To count from 1 to 138,315,881,655 would take you about eight thousand, seven hundred ninety-six 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 138315881655 cubic inches would be around 431 feet tall.

Recreational maths with 138315881655

• 138315881655 backwards is 556188513831
• The number of decimal digits it has is: 12
• The sum of 138315881655's digits is 54
• More coming soon!