39995981388

Names of 39995981388

• Cardinal: 39995981388 can be written as Thirty-nine billion, nine hundred ninety-five million, nine hundred eighty-one thousand, three hundred eighty-eight.

Scientific notation

• Scientific notation: 3.9995981388 × 10¹⁰

Factors of 39995981388

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 168

Divisors of 39995981388

• Number of divisors d(n): 672
• Complete list of divisors:
  1 2 3 4 6 9 11 12 18 19 22 27 29 31 33 36 38 44 54 57 58 62 66 73 76 81 87 93 99 108 114 116 124 132 146 162 171 174 186 198 209 219 228 243 261 279 292 297 319 324 341 342 348 372 396 418 438 486 513 522 551 558 589 594 627 638 657 682 684 729 783 803 836 837 876 891 899 957 972 1023 1026 1044 1102 1116 1178 1188 1254 1276 1314 1364 1387 1458 1539 1566 1606 1653 1674 1767 1782 1798 1881 1914 1971 2046 2052 2117 2204 2263 2349 2356 2409 2508 2511 2628 2673 2697 2774 2871 2916 3069 3078 3132 3212 3306 3348 3534 3564 3596 3762 3828 3942 4092 4161 4234 4526 4617 4698 4818 4959 5022 5301 5346 5394 5548 5643 5742 5913 6061 6138 6156 6351 6479 6612 6789 7047 7068 7227 7524 7533 7884 8019 8091 8322 8468 8613 9052 9207 9234 9396 9636 9889 9918 10044 10602 10692 10788 11286 11484 11826 12122 12276 12483 12702 12958 13578 13851 14094 14454 14877 15066 15257 15903 16038 16182 16644 16929 17081 17226 17739 18183 18414 18468 19053 19437 19778 19836 20367 21141 21204 21681 22572 22599 23287 23652 24244 24273 24893 24966 25404 25839 25916 27156 27621 27702 28188 28908 29667 29754 30132 30514 31806 32076 32364 33858 34162 34452 35478 36366 36828 37449 38106 38874 39556 40223 40734 42282 42997 43362 44631 45198 45771 46574 47709 48546 49786 49932 50787 51243 51678 53217 54549 55242 55404 57159 58311 59334 59508 61028 61101 63612 65043 65627 67716 68324 69861 70956 72732 72819 74679 74898 76212 77517 77748 80446 81468 82863 84564 85994 86724 89001 89262 90396 91542 93148 95418 97092 99572 101574 102486 103356 106434 109098 110484 112347 114318 116622 118668 120669 122202 128991 130086 131254 133893 137313 139722 143127 145638 149358 149796 152361 153729 155034 160892 163647 165726 171477 171988 174933 178002 178524 183084 183303 187891 190836 195129 196881 203148 204972 209583 212868 218196 218457 224037 224694 228636 232551 233244 241338 244404 248589 257982 260172 262508 267003 267786 274626 279444 286254 291276 298716 304722 307458 310068 327294 331452 337041 342954 349866 356004 362007 366606 375782 386973 390258 393762 401679 411939 419166 429381 436914 442453 448074 449388 461187 465102 472967 482676 490941 497178 514431 515964 524799 534006 535572 549252 549909 563673 572508 585387 590643 609444 614916 628749 654588 655371 672111 674082 685908 699732 721897 724014 733212 751564 773946 780516 787524 801009 803358 823878 838332 858762 873828 884906 896148 922374 930204 945934 981882 994356 1011123 1028862 1049598 1068012 1086021 1099818 1127346 1160919 1170774 1181286 1235817 1246913 1257498 1310742 1327359 1344222 1348164 1383561 1418901 1443794 1448028 1472823 1543293 1547892 1574397 1602018 1606716 1647756 1649727 1691019 1717524 1769812 1771929 1844748 1886247 1891868 1963764 2016333 2022246 2057724 2099196 2165691 2172042 2199636 2254692 2321838 2341548 2362572 2403027 2471634 2493826 2514996 2621484 2654718 2688444 2767122 2837802 2887588 2945646 3086586 3148794 3204036 3258063 3299454 3382038 3482757 3543858 3707451 3740739 3772494 3982077 4032666 4044492 4150683 4256703 4331382 4344084 4418469 4643676 4723191 4806054 4943268 4987652 5073057 5309436 5315787 5534244 5658741 5675604 5891292 6048999 6173172 6297588 6497073 6516126 6598908 6764076 6965514 7087716 7209081 7414902 7481478 7544988 7964154 8065332 8301366 8513406 8662764 8836938 9446382 9612108 9774189 10146114 10448271 10631574 11122353 11222217 11317482 11946231 12097998 12452049 12770109 12994146 13032252 13716043 13931028 14418162 14829804 14962956 15219171 15928308 15947361 16602732 16976223 17026812 17673876 18146997 18892764 19491219 19548378 20292228 20896542 21263148 22244706 22444434 22634964 23892462 24195996 24904098 25540218 25988292 27432086 28836324 29322567 30438342 31344813 31894722 33666651 33952446 35838693 36293994 38310327 38982438 39096756 41148129 41793084 44489412 44888868 45657513 47784924 47842083 49808196 51080436 54864172 58473657 58645134 60876684 62689626 63789444 67333302 67904892 71677386 72587988 76620654 77964876 82296258 91315026 95684166 100999953 107516079 114930981 116947314 117290268 123444387 125379252 134666604 136972539 143354772 153241308 164592516 175420971 182630052 191368332 201999906 215032158 229861962 233894628 246888774 273945078 302999859 322548237 344792943 350841942 370333161 403999812 430064316 459723924 493777548 526262913 547890156 605999718 645096474 689585886 701683884 740666322 908999577 1052525826 1110999483 1211999436 1290192948 1379171772 1481332644 1817999154 2105051652 2221998966 3332998449 3635998308 4443997932 6665996898 9998995347 13331993796 19997990694 39995981388
• Sum of all divisors σ(n): 130446489600
• Sum of proper divisors (its aliquot sum) s(n): 90450508212
• 39995981388 is an abundant number, because the sum of its proper divisors (90450508212) is greater than itself. Its abundance is 50454526824

Bases of 39995981388

• Binary: 100101001111111100100011111001001100₂
• Hexadecimal: 0x94FF23E4C
• Base-36: IDGKOR0

Squares and roots of 39995981388

• 39995981388 squared (39995981388²) is 1599678527189242406544
• 39995981388 cubed (39995981388³) is 63980712600244191245954153403072
• The square root of 39995981388 is 199989.9532176553
• The cube root of 39995981388 is 3419.8373606869

Scales and comparisons

• 39,995,981,388 seconds is equal to 1,271 years, 38 weeks, 6 days, 10 hours, 49 minutes, 48 seconds.
• To count from 1 to 39,995,981,388 would take you about two thousand, five hundred forty-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 39995981388 cubic inches would be around 285 feet tall.

Recreational maths with 39995981388

• 39995981388 backwards is 88318959993
• The number of decimal digits it has is: 11
• The sum of 39995981388's digits is 72
• More coming soon!