640848264

Names of 640848264

• Cardinal: 640848264 can be written as Six hundred forty million, eight hundred forty-eight thousand, two hundred sixty-four.

Scientific notation

• Scientific notation: 6.40848264 × 10⁸

Factors of 640848264

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 126

Divisors of 640848264

• Number of divisors d(n): 384
• Complete list of divisors:
  1 2 3 4 6 7 8 12 14 19 21 23 24 28 29 38 42 43 46 49 56 57 58 69 76 84 86 87 92 98 114 116 129 133 138 147 152 161 168 172 174 184 196 203 228 232 258 266 276 294 301 322 344 348 392 399 406 437 456 483 516 532 551 552 588 602 609 644 667 696 798 812 817 874 903 931 966 989 1032 1064 1102 1127 1176 1204 1218 1247 1288 1311 1334 1421 1596 1624 1634 1653 1748 1806 1862 1932 1978 2001 2107 2204 2254 2408 2436 2451 2494 2622 2668 2793 2842 2967 3059 3192 3268 3306 3381 3496 3612 3724 3741 3857 3864 3956 4002 4214 4263 4408 4508 4669 4872 4902 4988 5244 5336 5586 5684 5719 5934 6118 6321 6536 6612 6762 6923 7224 7448 7482 7714 7912 8004 8428 8526 8729 9016 9177 9338 9804 9976 10488 11172 11368 11438 11571 11868 12236 12642 12673 13224 13524 13846 14007 14964 15428 16008 16856 17052 17157 17458 18354 18676 18791 19608 20769 21413 22344 22876 23142 23693 23736 24472 25284 25346 26187 26999 27048 27692 28014 28681 29928 30856 32683 34104 34314 34916 36708 37352 37582 38019 40033 41538 42826 45752 46284 47386 48461 50568 50692 52374 53998 55384 56028 56373 57362 61103 64239 65366 68628 69832 71079 73416 75164 76038 80066 80997 83076 85652 86043 88711 92568 94772 96922 98049 101384 104748 107996 112056 112746 114724 120099 122206 128478 130732 131537 137256 142158 145383 150328 152076 160132 161994 165851 166152 171304 172086 177422 183309 189544 193844 196098 200767 209496 215992 225492 229448 240198 244412 256956 261464 263074 266133 284316 290766 304152 320264 323988 331702 344172 354844 366618 387688 392196 394611 401534 450984 480396 488824 497553 513912 526148 532266 544939 568632 581532 602301 620977 647976 663404 688344 709688 733236 784392 789222 803068 920759 960792 995106 1052296 1064532 1089878 1160957 1163064 1204602 1241954 1326808 1405369 1466472 1578444 1606136 1634817 1841518 1862931 1990212 2129064 2179756 2321914 2409204 2483908 2762277 2810738 3156888 3269634 3482871 3683036 3725862 3814573 3980424 4216107 4359512 4643828 4818408 4967816 5524554 5621476 6539268 6965742 7366072 7451724 7629146 8432214 9287656 11049108 11242952 11443719 13078536 13931484 14903448 15258292 16864428 22098216 22887438 26702011 27862968 30516584 33728856 45774876 53404022 80106033 91549752 106808044 160212066 213616088 320424132 640848264
• Sum of all divisors σ(n): 2166912000
• Sum of proper divisors (its aliquot sum) s(n): 1526063736
• 640848264 is an abundant number, because the sum of its proper divisors (1526063736) is greater than itself. Its abundance is 885215472

Bases of 640848264

• Binary: 100110001100101001000110001000₂
• Hexadecimal: 0x26329188
• Base-36: ALJLOO

Squares and roots of 640848264

• 640848264 squared (640848264²) is 410686497471813696
• 640848264 cubed (640848264³) is 263187728953052196013023744
• The square root of 640848264 is 25314.9810191515
• The cube root of 640848264 is 862.1544432153

Scales and comparisons

• 640,848,264 seconds is equal to 20 years, 19 weeks, 4 days, 5 hours, 24 minutes, 24 seconds.
• To count from 1 to 640,848,264 would take you about thirty 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 640848264 cubic inches would be around 71.8 feet tall.

Recreational maths with 640848264

• 640848264 backwards is 462848046
• 640848264 is a Harshad number.
• The number of decimal digits it has is: 9
• The sum of 640848264's digits is 42
• More coming soon!