12644121672

Names of 12644121672

• Cardinal: 12644121672 can be written as Twelve billion, six hundred forty-four million, one hundred twenty-one thousand, six hundred seventy-two.

Scientific notation

• Scientific notation: 1.2644121672 × 10¹⁰

Factors of 12644121672

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 645

Divisors of 12644121672

• Number of divisors d(n): 384
• Complete list of divisors:
  1 2 3 4 6 7 8 9 12 13 14 18 19 21 24 26 28 36 38 39 42 52 56 57 63 72 76 78 84 91 104 114 117 126 133 152 156 168 169 171 182 228 234 247 252 266 273 312 338 342 364 399 456 468 494 504 507 532 546 601 676 684 728 741 798 819 936 988 1014 1064 1092 1183 1197 1202 1352 1368 1482 1521 1596 1638 1729 1803 1976 2028 2184 2197 2223 2366 2394 2404 2964 3042 3192 3211 3276 3458 3549 3606 4056 4207 4394 4446 4732 4788 4808 5187 5409 5928 6084 6422 6552 6591 6916 7098 7212 7813 8414 8788 8892 9464 9576 9633 10374 10647 10818 11419 12168 12621 12844 13182 13832 14196 14424 15379 15561 15626 16828 17576 17784 19266 19773 20748 21294 21636 22477 22838 23439 25242 25688 26364 28392 28899 30758 31122 31252 33656 34257 37863 38532 39546 41496 41743 42588 43272 44954 45676 46137 46878 50484 52728 54691 57798 61516 62244 62504 67431 68514 70317 75726 77064 79092 79933 83486 85176 89908 91352 92274 93756 100968 101569 102771 109382 115596 123032 124488 125229 134862 137028 138411 140634 148447 151452 158184 159866 164073 166972 179816 184548 187512 202293 203138 205542 218764 231192 239799 250458 269724 274056 276822 281268 292201 296894 302904 304707 319732 328146 333944 369096 375687 404586 406276 411084 437528 445341 479598 492219 500916 539448 553644 562536 584402 593788 609414 639464 656292 710983 719397 751374 809172 812552 822168 876603 890682 914121 959196 984438 1001832 1039129 1107288 1168804 1187576 1218828 1312584 1320397 1336023 1421966 1438794 1502748 1618344 1753206 1781364 1828242 1918392 1929811 1968876 2078258 2132949 2337608 2437656 2629809 2640794 2672046 2843932 2877588 3005496 3117387 3506412 3562728 3656484 3859622 3937752 3961191 4156516 4265898 5259618 5281588 5344092 5687864 5755176 5789433 6234774 6398847 7012824 7312968 7719244 7922382 8313032 8531796 9242779 9352161 10519236 10563176 10688184 11578866 11883573 12469548 12797694 13508677 15438488 15844764 17063592 17368299 18485558 18704322 21038472 23157732 23767146 24939096 25087543 25595388 27017354 27728337 31689528 34736598 36971116 37408644 40526031 46315464 47534292 50175086 51190776 54034708 55456674 69473196 73942232 74817288 75262629 81052062 83185011 95068584 100350172 108069416 110913348 121578093 138946392 150525258 162104124 166370022 175612801 200700344 221826696 225787887 243156186 301050516 324208248 332740044 351225602 451575774 486312372 526838403 602101032 665480088 702451204 903151548 972624744 1053676806 1404902408 1580515209 1806303096 2107353612 3161030418 4214707224 6322060836 12644121672
• Sum of all divisors σ(n): 44702112000
• Sum of proper divisors (its aliquot sum) s(n): 32057990328
• 12644121672 is an abundant number, because the sum of its proper divisors (32057990328) is greater than itself. Its abundance is 19413868656

Bases of 12644121672

• Binary: 1011110001101001011111110001001000₂
• Hexadecimal: 0x2F1A5FC48
• Base-36: 5T3ZEQ0

Squares and roots of 12644121672

• 12644121672 squared (12644121672²) is 159873812856340075584
• 12644121672 cubed (12644121672³) is 2021463941922121772293772456448
• The square root of 12644121672 is 112446.0834000011
• The cube root of 12644121672 is 2329.6797359241

Scales and comparisons

• 12,644,121,672 seconds is equal to 402 years, 2 weeks, 2 days, 1 minute, 12 seconds.
• To count from 1 to 12,644,121,672 would take you about eight hundred four 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 12644121672 cubic inches would be around 194.1 feet tall.

Recreational maths with 12644121672

• 12644121672 backwards is 27612144621
• 12644121672 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 12644121672's digits is 36
• More coming soon!