138987939636

Names of 138987939636

• Cardinal: 138987939636 can be written as One hundred thirty-eight billion, nine hundred eighty-seven million, nine hundred thirty-nine thousand, six hundred thirty-six.

Scientific notation

• Scientific notation: 1.38987939636 × 10¹¹

Factors of 138987939636

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 174

Divisors of 138987939636

• Number of divisors d(n): 432
• Complete list of divisors:
  1 2 3 4 6 7 9 12 13 14 18 21 26 27 28 36 39 42 49 52 54 63 78 84 91 98 108 117 126 147 149 156 169 182 189 196 234 252 273 294 298 338 343 351 364 378 441 447 468 507 546 588 596 637 676 686 702 756 819 882 894 1014 1029 1043 1092 1183 1274 1323 1341 1372 1404 1521 1638 1764 1788 1911 1937 2028 2058 2086 2366 2457 2548 2646 2682 3042 3087 3129 3276 3549 3822 3874 4023 4116 4172 4459 4563 4732 4914 5292 5364 5733 5811 6084 6174 6258 7098 7301 7644 7748 8046 8281 8918 9126 9261 9387 9828 10647 11466 11622 12348 12516 13377 13559 14196 14602 16092 16562 17199 17433 17836 18252 18522 18774 21294 21903 22201 22932 23244 24843 25181 26754 27118 28161 29204 31941 33124 34398 34866 37044 37548 40131 40677 42588 43806 44402 49686 50362 51107 52299 53508 54236 56322 57967 63882 65709 66603 68796 69732 74529 75543 80262 81354 87612 88804 94913 99372 100724 102214 104598 112644 115934 120393 122031 127764 131418 133206 149058 151086 153321 155407 160524 162708 173901 176267 189826 197127 199809 204428 209196 223587 226629 231868 240786 244062 262836 266412 284739 288613 298116 302172 306642 310814 347802 352534 366093 379652 394254 399618 447174 453258 459963 466221 481572 488124 521703 528801 569478 577226 599427 613284 621628 664391 679887 695604 705068 732186 788508 799236 854217 865839 894348 906516 919926 932442 1043406 1057602 1087849 1138956 1154452 1198854 1233869 1328782 1359774 1379889 1398663 1464372 1565109 1586403 1708434 1731678 1839852 1864884 1993173 2020291 2086812 2115204 2175698 2397708 2467738 2562651 2597517 2657564 2719548 2759778 2797326 3130218 3172806 3263547 3416868 3463356 3701607 3751969 3986346 4040582 4195989 4351396 4759209 4935476 5125302 5195034 5519556 5594652 5979519 6060873 6260436 6345612 6527094 7403214 7503938 7614943 7792551 7972692 8081164 8391978 8637083 9518418 9790641 10250604 10390068 11104821 11255907 11959038 12121746 13054188 14142037 14806428 15007876 15229886 15585102 16783956 17274166 17938557 18182619 19036836 19581282 22209642 22511814 22844829 23918076 24243492 25911249 26263783 28284074 29371923 30459772 31170204 33314463 33767721 34548332 35877114 36365238 39162564 42426111 44419284 45023628 45689658 51822498 52527566 54547857 56568148 58743846 66628926 67535442 68534487 71754228 72730476 77733747 78791349 84852222 91379316 98994259 101303163 103644996 105055132 109095714 117487692 127278333 133257852 135070884 137068974 155467494 157582698 169704444 183846481 197988518 202606326 205603461 218191428 233201241 236374047 254556666 274137948 296982777 310934988 315165396 367692962 381834999 395977036 405212652 411206922 466402482 472748094 509113332 551539443 593965554 709122141 735385924 763669998 822413844 890948331 932804964 945496188 1103078886 1187931108 1286925367 1418244282 1527339996 1654618329 1781896662 2206157772 2573850734 2672844993 2836488564 3309236658 3563793324 3860776101 4963854987 5147701468 5345689986 6618473316 7721552202 9927709974 10691379972 11582328303 15443104404 19855419948 23164656606 34746984909 46329313212 69493969818 138987939636
• Sum of all divisors σ(n): 458106096000
• Sum of proper divisors (its aliquot sum) s(n): 319118156364
• 138987939636 is an abundant number, because the sum of its proper divisors (319118156364) is greater than itself. Its abundance is 180130216728

Bases of 138987939636

• Binary: 10000001011100010100111010011100110100₂
• Hexadecimal: 0x205C53A734
• Base-36: 1RULTWL0

Squares and roots of 138987939636

• 138987939636 squared (138987939636²) is 19317647364260379812496
• 138987939636 cubed (138987939636³) is 2684920005773356173165627046491456
• The square root of 138987939636 is 372810.8630874375
• The cube root of 138987939636 is 5179.9516455189

Scales and comparisons

• 138,987,939,636 seconds is equal to 4,419 years, 20 weeks, 17 hours, 36 seconds.
• To count from 1 to 138,987,939,636 would take you about eight thousand, eight hundred thirty-eight 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 138987939636 cubic inches would be around 431.7 feet tall.

Recreational maths with 138987939636

• 138987939636 backwards is 636939789831
• The number of decimal digits it has is: 12
• The sum of 138987939636's digits is 72
• More coming soon!