138908288988

Names of 138908288988

• Cardinal: 138908288988 can be written as One hundred thirty-eight billion, nine hundred eight million, two hundred eighty-eight thousand, nine hundred eighty-eight.

Scientific notation

• Scientific notation: 1.38908288988 × 10¹¹

Factors of 138908288988

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 492

Divisors of 138908288988

• Number of divisors d(n): 480
• Complete list of divisors:
  1 2 3 4 6 7 9 12 14 18 21 27 28 31 36 42 54 62 63 79 81 84 89 93 108 124 126 158 162 178 186 189 217 237 252 267 279 281 316 324 356 372 378 434 474 534 553 558 562 567 623 651 711 756 801 837 843 868 948 1068 1106 1116 1124 1134 1246 1302 1422 1602 1659 1674 1686 1869 1953 1967 2133 2212 2268 2403 2449 2492 2511 2529 2604 2759 2844 3204 3318 3348 3372 3738 3906 3934 4266 4806 4898 4977 5022 5058 5518 5607 5859 5901 6399 6636 7031 7209 7347 7476 7587 7812 7868 8277 8532 8711 9612 9796 9954 10044 10116 11036 11214 11718 11802 12798 14062 14418 14694 14931 15174 16554 16821 17143 17422 17577 17703 19313 19908 21093 22041 22199 22428 22761 23436 23604 24831 25009 25596 26133 28124 28836 29388 29862 30348 33108 33642 34286 34844 35154 35406 38626 42186 44082 44398 44793 45522 49217 49662 50018 50463 51429 52266 53109 57939 59724 60977 63279 66123 66597 67284 68572 70308 70812 74493 75027 77252 78399 84372 88164 88796 89586 91044 98434 99324 100036 100926 102858 104532 106218 115878 121954 126558 132246 133194 147651 148986 150054 154287 155393 156798 159327 173817 175063 179172 182931 189837 196868 198369 199791 201852 205716 212436 217961 223479 225081 231756 235197 243908 253116 264492 266388 295302 297972 300108 308574 310786 313596 318654 347634 350126 365862 379674 396738 399582 435922 442953 446958 450162 462861 466179 470394 521451 525189 548793 569511 590604 599373 617148 621572 637308 653883 675243 688169 695268 700252 705591 731724 759348 775279 793476 799164 871844 885906 893916 900324 925722 932358 940788 1042902 1050378 1097586 1139022 1198746 1307766 1328859 1350486 1376338 1388583 1398537 1411182 1525727 1550558 1564353 1575567 1646379 1771812 1798119 1851444 1864716 1961649 1975711 2025729 2064507 2085804 2100756 2195172 2278044 2325837 2397492 2615532 2657718 2700972 2752676 2777166 2797074 2822364 3051454 3101116 3128706 3151134 3292758 3596238 3923298 3951422 3986577 4051458 4129014 4195611 4577181 4651674 4726701 4817183 4939137 5315436 5426953 5554332 5594148 5884947 5927133 6102908 6193521 6257412 6302268 6585516 6977511 7192476 7846596 7902844 7973154 8102916 8258028 8391222 9154362 9303348 9453402 9634366 9878274 10853906 11769894 11854266 12387042 12586833 13731543 13829977 13955022 14180103 14451549 15946308 16280859 16782444 17654841 17781399 18308724 18580563 18906804 19268732 19756548 20932533 21707812 23539788 23708532 24774084 25173666 27463086 27659954 27910044 28360206 28903098 32561718 35309682 35562798 37161126 41194629 41489931 41865066 43354647 48842577 50347332 53344197 54926172 55319908 55741689 56720412 57806196 61247041 62797599 65123436 70619364 71125596 74322252 82389258 82979862 83730132 86709294 97685154 106688394 111483378 122494082 123583887 124469793 125595198 130063941 146527731 160032591 164778516 165959724 173418588 183741123 195370308 213376788 222966756 244988164 247167774 248939586 251190396 260127882 293055462 320065182 367482246 373409379 390191823 428729287 439583193 494335548 497879172 520255764 551223369 586110924 640130364 734964492 746818758 780383646 857458574 879166386 1102446738 1120228137 1286187861 1493637516 1560767292 1653670107 1714917148 1758332772 2204893476 2240456274 2572375722 3307340214 3858563583 4480912548 4961010321 5144751444 6614680428 7717127166 9922020642 11575690749 15434254332 19844041284 23151381498 34727072247 46302762996 69454144494 138908288988
• Sum of all divisors σ(n): 440255692800
• Sum of proper divisors (its aliquot sum) s(n): 301347403812
• 138908288988 is an abundant number, because the sum of its proper divisors (301347403812) is greater than itself. Its abundance is 162439114824

Bases of 138908288988

• Binary: 10000001010111100101000100011111011100₂
• Hexadecimal: 0x20579447DC
• Base-36: 1RTAEPR0

Squares and roots of 138908288988

• 138908288988 squared (138908288988²) is 19295512749573722064144
• 138908288988 cubed (138908288988³) is 2680306661189425058296906624846272
• The square root of 138908288988 is 372704.0233053569
• The cube root of 138908288988 is 5178.9619545049

Scales and comparisons

• 138,908,288,988 seconds is equal to 4,416 years, 44 weeks, 2 days, 19 hours, 49 minutes, 48 seconds.
• To count from 1 to 138,908,288,988 would take you about eight thousand, eight hundred thirty-three 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 138908288988 cubic inches would be around 431.6 feet tall.

Recreational maths with 138908288988

• 138908288988 backwards is 889882809831
• The number of decimal digits it has is: 12
• The sum of 138908288988's digits is 72
• More coming soon!