8139564972

Names of 8139564972

• Cardinal: 8139564972 can be written as Eight billion, one hundred thirty-nine million, five hundred sixty-four thousand, nine hundred seventy-two.

Scientific notation

• Scientific notation: 8.139564972 × 10⁹

Factors of 8139564972

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 242

Divisors of 8139564972

• Number of divisors d(n): 432
• Complete list of divisors:
  1 2 3 4 6 7 9 11 12 14 18 21 22 28 31 33 36 42 44 62 63 66 77 79 84 93 99 109 121 124 126 132 154 158 186 198 217 218 231 237 242 252 279 308 316 327 341 363 372 396 434 436 462 474 484 553 558 651 654 682 693 711 726 763 847 868 869 924 948 981 1023 1089 1106 1116 1199 1302 1308 1364 1386 1422 1452 1526 1659 1694 1738 1953 1962 2046 2178 2212 2289 2387 2398 2449 2541 2604 2607 2772 2844 3052 3069 3318 3379 3388 3476 3597 3751 3906 3924 4092 4356 4578 4774 4796 4898 4977 5082 5214 6083 6138 6636 6758 6867 7161 7194 7347 7502 7623 7812 7821 8393 8611 9156 9548 9559 9796 9954 10137 10164 10428 10791 11253 12166 12276 13189 13516 13734 14322 14388 14694 15004 15246 15642 16786 17143 17222 18249 19118 19908 20274 21483 21582 22041 22506 23653 24332 25179 25833 26257 26378 26939 27468 28644 28677 29388 30411 30492 31284 33572 33759 34286 34444 36498 37169 38236 39567 40548 42966 43164 44082 45012 47306 50358 51429 51666 52514 52756 53878 54747 57354 60277 60822 66913 67518 68572 70959 72996 74338 75537 77499 78771 79134 80817 85932 86031 88164 92323 94612 94721 100716 102858 103332 105028 107756 109494 111507 114708 118701 120554 121644 133826 135036 141918 148676 151074 154287 154998 157542 158268 161634 172062 180831 184646 188573 189442 200739 205716 212877 218988 223014 236313 237402 241108 242451 260183 266941 267652 276969 283836 284163 296329 302148 308574 309996 315084 323268 334521 344124 361662 369292 377146 378884 401478 408859 425754 446028 472626 474804 484902 520366 533882 542493 553938 565719 568326 592658 602217 617148 663047 669042 723324 754292 780549 800823 802956 817718 830907 851508 852489 888987 945252 969804 1040732 1041931 1067764 1084986 1107876 1131438 1136652 1185316 1204434 1226577 1326094 1338084 1561098 1601646 1635436 1661814 1697157 1704978 1777974 1868587 1989141 2074303 2083862 2169972 2262876 2341647 2402469 2408868 2453154 2652188 2666961 2862013 2936351 3122196 3125793 3203292 3323628 3394314 3409956 3555948 3679731 3737174 3978282 4148606 4167724 4683294 4804938 4906308 5333922 5605761 5724026 5872702 5967423 6222909 6251586 6788628 7293517 7359462 7474348 7956564 8297212 8586039 8809053 9366588 9377379 9609876 10667844 11211522 11448052 11745404 11934846 12445818 12503172 14587034 14718924 16817283 17172078 17618106 18668727 18754758 20554457 21880551 22423044 23869692 24891636 25758117 26427159 29174068 32299861 33634566 34344156 35236212 37337454 37509516 41108914 43761102 51516234 52854318 61663371 64599722 65641653 67269132 74674908 82217828 87522204 96899583 103032468 105708636 123326742 129199444 131283306 184990113 193799166 226099027 246653484 262566612 290698749 369980226 387598332 452198054 581397498 678297081 739960452 904396108 1162794996 1356594162 2034891243 2713188324 4069782486 8139564972
• Sum of all divisors σ(n): 27265638400
• Sum of proper divisors (its aliquot sum) s(n): 19126073428
• 8139564972 is an abundant number, because the sum of its proper divisors (19126073428) is greater than itself. Its abundance is 10986508456

Bases of 8139564972

• Binary: 111100101001001111110011110101100₂
• Hexadecimal: 0x1E527E7AC
• Base-36: 3QM34J0

Squares and roots of 8139564972

• 8139564972 squared (8139564972²) is 66252517933409360784
• 8139564972 cubed (8139564972³) is 539266674277580661574356858048
• The square root of 8139564972 is 90219.5376401365
• The cube root of 8139564972 is 2011.5634290395

Scales and comparisons

• 8,139,564,972 seconds is equal to 258 years, 42 weeks, 1 day, 22 hours, 16 minutes, 12 seconds.
• To count from 1 to 8,139,564,972 would take you about five hundred seventeen 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 8139564972 cubic inches would be around 167.6 feet tall.

Recreational maths with 8139564972

• 8139564972 backwards is 2794659318
• The number of decimal digits it has is: 10
• The sum of 8139564972's digits is 54
• More coming soon!