138857950728

Names of 138857950728

• Cardinal: 138857950728 can be written as One hundred thirty-eight billion, eight hundred fifty-seven million, nine hundred fifty thousand, seven hundred twenty-eight.

Scientific notation

• Scientific notation: 1.38857950728 × 10¹¹

Factors of 138857950728

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 482

Divisors of 138857950728

• Number of divisors d(n): 288
• Complete list of divisors:
  1 2 3 4 6 7 8 9 12 14 18 21 24 27 28 36 42 54 56 61 63 72 81 84 108 122 126 162 168 183 189 216 243 244 252 324 366 378 409 427 486 488 504 549 567 648 732 756 818 854 972 1098 1134 1227 1281 1464 1512 1636 1647 1701 1708 1944 2196 2268 2454 2562 2863 3272 3294 3402 3416 3681 3843 4392 4536 4908 4941 5124 5726 6588 6804 7362 7686 8589 9816 9882 10248 11043 11452 11529 13176 13608 14724 14823 15372 17178 19764 22086 22904 23058 24949 25767 29448 29646 30744 33129 34356 34587 39528 44172 46116 49898 51534 59292 66258 68712 69174 74847 77301 88344 92232 99387 99796 103068 103761 118584 132516 138348 149694 154602 167281 174643 198774 199592 206136 207522 224541 231903 265032 276696 299388 309204 334562 349286 397548 415044 449082 463806 501843 523929 598776 618408 669124 673623 695709 698572 795096 830088 898164 927612 1003686 1047858 1170967 1338248 1347246 1391418 1397144 1505529 1571787 1796328 1855224 2007372 2020869 2095716 2341934 2694492 2782836 3011058 3143574 3512901 4014744 4041738 4191432 4516587 4683868 4715361 5388984 5565672 6022116 6062607 6287148 7025802 8083476 9033174 9367736 9430722 10204141 10538703 12044232 12125214 12574296 13549761 14051604 14146083 16166952 18066348 18861444 20408282 21077406 24250428 27099522 28103208 28292166 30612423 31616109 36132696 37722888 40649283 40816564 42154812 42438249 48500856 54199044 56584332 61224846 63232218 71428987 81298566 81633128 84309624 84876498 91837269 94848327 108398088 113168664 122449692 126464436 142857974 162597132 169752996 183674538 189696654 214286961 244899384 252928872 275511807 284544981 285715948 325194264 339505992 367349076 379393308 428573922 551023614 569089962 571431896 642860883 734698152 758786616 826535421 857147844 1102047228 1138179924 1285721766 1653070842 1714295688 1928582649 2204094456 2276359848 2479606263 2571443532 3306141684 3857165298 4959212526 5142887064 5785747947 6612283368 7714330596 9918425052 11571495894 15428661192 17357243841 19836850104 23142991788 34714487682 46285983576 69428975364 138857950728
• Sum of all divisors σ(n): 454134058560
• Sum of proper divisors (its aliquot sum) s(n): 315276107832
• 138857950728 is an abundant number, because the sum of its proper divisors (315276107832) is greater than itself. Its abundance is 176418157104

Bases of 138857950728

• Binary: 10000001010100100101000010111000001000₂
• Hexadecimal: 0x2054942E08
• Base-36: 1RSGFSI0

Squares and roots of 138857950728

• 138857950728 squared (138857950728²) is 19281530480379675729984
• 138857950728 cubed (138857950728³) is 2677393809404991183246735704228352
• The square root of 138857950728 is 372636.4860396791
• The cube root of 138857950728 is 5178.3362864643

Scales and comparisons

• 138,857,950,728 seconds is equal to 4,415 years, 13 weeks, 1 day, 4 hours, 58 minutes, 48 seconds.
• To count from 1 to 138,857,950,728 would take you about eight thousand, eight hundred thirty 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 138857950728 cubic inches would be around 431.5 feet tall.

Recreational maths with 138857950728

• 138857950728 backwards is 827059758831
• 138857950728 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 138857950728's digits is 63
• More coming soon!