138242431215

Names of 138242431215

• Cardinal: 138242431215 can be written as One hundred thirty-eight billion, two hundred forty-two million, four hundred thirty-one thousand, two hundred fifteen.

Scientific notation

• Scientific notation: 1.38242431215 × 10¹¹

Factors of 138242431215

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 909

Divisors of 138242431215

• Number of divisors d(n): 256
• Complete list of divisors:
  1 3 5 7 9 15 21 27 31 35 41 45 63 93 105 123 135 155 179 189 205 217 279 287 315 369 465 537 615 643 651 837 861 895 945 1085 1107 1253 1271 1395 1435 1611 1845 1929 1953 2583 2685 3215 3255 3759 3813 4185 4305 4501 4833 5535 5549 5787 5859 6265 6355 7339 7749 8055 8897 9645 9765 11277 11439 12915 13503 16647 17361 18795 19065 19933 22017 22505 24165 26363 26691 27745 28935 29295 33831 34317 36695 38745 38843 40509 44485 49941 51373 56385 57195 59799 66051 67515 79089 80073 83235 86805 99665 110085 115097 116529 121527 131815 133455 139531 149823 154119 169155 171585 179397 184541 194215 198153 202545 227509 237267 240219 249705 256865 298995 330255 345291 349587 395445 400365 418593 462357 538191 553623 575485 582645 607635 682527 697655 711801 749115 770595 805679 817253 896985 922705 990765 1035873 1048761 1137545 1186335 1201095 1255779 1387071 1592563 1660869 1726455 1747935 2047581 2092965 2311785 2417037 2451759 2690955 2768115 3107619 3412635 3559005 3568007 3767337 4028395 4086265 4718977 4777689 4982607 5179365 5243805 5720771 6142743 6278895 6935355 7251111 7355277 7962815 8304345 10237905 10704021 12085185 12258795 14156931 14333067 15538095 17162313 17840035 18836685 21753333 22065831 23594885 23888445 24913035 24976049 28603855 30713715 32112063 33032839 36255555 36776385 42470793 42999201 51486939 53520105 70784655 71665335 74928147 85811565 96336189 99098517 108766665 110329155 124880245 127412379 146288287 154460817 160560315 165164195 212353965 214996005 224784441 257434695 297295551 374640735 438864861 481680945 495492585 637061895 674353323 731441435 772304085 891886653 1024018009 1123922205 1316594583 1486477755 2194324305 3072054027 3371766615 3949783749 4459433265 5120090045 6582972915 9216162081 15360270135 19748918745 27648486243 46080810405 138242431215
• Sum of all divisors σ(n): 299129241600
• Sum of proper divisors (its aliquot sum) s(n): 160886810385
• 138242431215 is an abundant number, because the sum of its proper divisors (160886810385) is greater than itself. Its abundance is 22644379170

Bases of 138242431215

• Binary: 10000000101111111001000001100011101111₂
• Hexadecimal: 0x202FE418EF
• Base-36: 1RI9Z2LR

Squares and roots of 138242431215

• 138242431215 squared (138242431215²) is 19110969788234006376225
• 138242431215 cubed (138242431215³) is 2641946926401882742789155973863375
• The square root of 138242431215 is 371809.6706851505
• The cube root of 138242431215 is 5170.6735677851

Scales and comparisons

• 138,242,431,215 seconds is equal to 4,395 years, 35 weeks, 3 days, 3 hours, 20 minutes, 15 seconds.
• To count from 1 to 138,242,431,215 would take you about eight thousand, seven hundred ninety-one 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 138242431215 cubic inches would be around 430.9 feet tall.

Recreational maths with 138242431215

• 138242431215 backwards is 512134242831
• The number of decimal digits it has is: 12
• The sum of 138242431215's digits is 36
• More coming soon!