138530281491728

Names of 138530281491728

• Cardinal: 138530281491728 can be written as One hundred thirty-eight trillion, five hundred thirty billion, two hundred eighty-one million, four hundred ninety-one thousand, seven hundred twenty-eight.

Scientific notation

• Scientific notation: 1.38530281491728 × 10¹⁴

Factors of 138530281491728

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 291

Divisors of 138530281491728

• Number of divisors d(n): 240
• Complete list of divisors:
  1 2 4 7 8 14 16 28 43 49 56 86 98 112 172 196 239 301 343 344 392 478 602 686 688 784 956 1204 1372 1673 1849 1912 2107 2408 2744 3346 3698 3824 4214 4816 5488 6692 7396 8428 10277 11711 12943 13384 14749 14792 16856 20554 23422 25886 26768 29498 29584 33712 41108 46844 51772 57121 58996 71939 81977 82216 90601 93688 103544 114242 117992 143878 163954 164432 181202 187376 207088 228484 235984 287756 327908 362404 399847 441911 456968 503573 575512 634207 655816 724808 799694 883822 913936 1007146 1151024 1268414 1311632 1449616 1599388 1767644 2014292 2456203 2536828 2798929 3093377 3198776 3525011 3535288 4028584 4912406 5073656 5597858 6186754 6397552 7050022 7070576 8057168 9824812 10147312 11195716 12373508 13651919 14100044 17193421 19592503 19649624 21653639 22391432 24747016 27303838 28200088 34386842 39185006 39299248 43307278 44782864 49494032 54607676 56400176 68773684 78370012 86614556 95563433 105616729 109215352 120353947 137547368 151575473 156740024 173229112 191126866 211233458 218430704 240707894 275094736 303150946 313480048 346458224 382253732 422466916 481415788 587032517 606301892 668944031 739317103 764507464 842477629 844933832 962831576 1174065034 1212603784 1337888062 1478634206 1529014928 1684955258 1689867664 1925663152 2348130068 2425207568 2675776124 2957268412 3369910516 4109227619 4682608217 4696260136 5175219721 5351552248 5914536824 6739821032 8218455238 9365216434 9392520272 10350439442 10703104496 11829073648 13479642064 16436910476 18730432868 20700878884 25242398231 28764593333 32873820952 36226538047 37460865736 41401757768 50484796462 57529186666 65747641904 72453076094 74921731472 82803515536 100969592924 115058373332 144906152188 176696787617 201352153331 201939185848 230116746664 289812304376 353393575234 402704306662 403878371696 460233493328 579624608752 706787150468 805408613324 1236877513319 1413574300936 1610817226648 2473755026638 2827148601872 3221634453296 4947510053276 8658142593233 9895020106552 17316285186466 19790040213104 34632570372932 69265140745864 138530281491728
• Sum of all divisors σ(n): 321800671296000
• Sum of proper divisors (its aliquot sum) s(n): 183270389804272
• 138530281491728 is an abundant number, because the sum of its proper divisors (183270389804272) is greater than itself. Its abundance is 44740108312544

Bases of 138530281491728

• Binary: 11111011111111000011000001110000000110100010000₂
• Hexadecimal: 0x7DFE18380D10
• Base-36: 1D3RXKUR68

Squares and roots of 138530281491728

• 138530281491728 squared (138530281491728²) is 19190638890177397272932425984
• 138530281491728 cubed (138530281491728³) is 2658484607462377464257113871799737468260352
• The square root of 138530281491728 is 11769888.7629292403
• The cube root of 138530281491728 is 51742.5989545603

Scales and comparisons

• 138,530,281,491,728 seconds is equal to 4,404,834 years, 23 weeks, 2 days, 11 hours, 42 minutes, 8 seconds.
• To count from 1 to 138,530,281,491,728 would take you about eleven million, twelve thousand and eighty-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 138530281491728 cubic inches would be around 4311.9 feet tall.

Recreational maths with 138530281491728

• 138530281491728 backwards is 827194182035831
• The number of decimal digits it has is: 15
• The sum of 138530281491728's digits is 62
• More coming soon!