640068068736

Names of 640068068736

• Cardinal: 640068068736 can be written as Six hundred forty billion, sixty-eight million, sixty-eight thousand, seven hundred thirty-six.

Scientific notation

• Scientific notation: 6.40068068736 × 10¹¹

Factors of 640068068736

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 475

Divisors of 640068068736

• Number of divisors d(n): 288
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 18 24 27 31 32 36 48 54 62 64 72 93 96 108 124 128 144 186 192 216 248 279 288 372 384 432 439 496 558 576 744 837 864 878 961 992 1116 1152 1317 1488 1674 1728 1756 1922 1984 2232 2634 2883 2976 3348 3456 3512 3844 3951 3968 4464 5268 5766 5952 6696 7024 7688 7902 8649 8928 10536 11532 11853 11904 13392 13609 14048 15376 15804 17298 17856 21072 23064 23706 25947 26784 27218 28096 30752 31608 34596 35712 40827 42144 46128 47412 51894 53568 54436 56192 61504 63216 69192 81654 84288 92256 94824 103788 107136 108872 122481 123008 126432 138384 163308 168576 184512 189648 192721 207576 217744 244962 252864 276768 326616 367443 369024 379296 385442 415152 421879 435488 489924 505728 553536 578163 653232 734886 758592 770884 830304 843758 870976 979848 1107072 1156326 1265637 1306464 1469772 1517184 1541768 1660608 1687516 1734489 1741952 1959696 2312652 2531274 2612928 2939544 3083536 3321216 3375032 3468978 3796911 3919392 4625304 5062548 5203467 5225856 5879088 5974351 6167072 6750064 6937956 7593822 7838784 9250608 10125096 10406934 11390733 11758176 11948702 12334144 13500128 13875912 15187644 15677568 17923053 18501216 20250192 20813868 22781466 23516352 23897404 24668288 27000256 27751824 30375288 35846106 37002432 40500384 41627736 45562932 47032704 47794808 53769159 54000512 55503648 60750576 71692212 74004864 81000768 83255472 91125864 95589616 107538318 111007296 121501152 143384424 161307477 162001536 166510944 182251728 185204881 191179232 215076636 222014592 243002304 286768848 322614954 333021888 364503456 370409762 382358464 430153272 486004608 555614643 573537696 645229908 666043776 729006912 740819524 764716928 860306544 1111229286 1147075392 1290459816 1458013824 1481639048 1666843929 1720613088 2222458572 2294150784 2580919632 2963278096 3333687858 3441226176 4444917144 5000531787 5161839264 5926556192 6667375716 6882452352 8889834288 10001063574 10323678528 11853112384 13334751432 17779668576 20002127148 20647357056 23706224768 26669502864 35559337152 40004254296 53339005728 71118674304 80008508592 106678011456 160017017184 213356022912 320034034368 640068068736
• Sum of all divisors σ(n): 1956450504600
• Sum of proper divisors (its aliquot sum) s(n): 1316382435864
• 640068068736 is an abundant number, because the sum of its proper divisors (1316382435864) is greater than itself. Its abundance is 676314367128

Bases of 640068068736

• Binary: 1001010100000111000001111010010110000000₂
• Hexadecimal: 0x950707A580
• Base-36: 861K02O0

Squares and roots of 640068068736

• 640068068736 squared (640068068736²) is 409687132615432820637696
• 640068068736 cubed (640068068736³) is 262227651759149602094319162680672256
• The square root of 640068068736 is 800042.5418288705
• The cube root of 640068068736 is 8618.0442693929

Scales and comparisons

• 640,068,068,736 seconds is equal to 20,352 years, 9 weeks, 4 days, 5 hours, 45 minutes, 36 seconds.
• To count from 1 to 640,068,068,736 would take you about forty thousand, seven 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 640068068736 cubic inches would be around 718.2 feet tall.

Recreational maths with 640068068736

• 640068068736 backwards is 637860860046
• 640068068736 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 640068068736's digits is 54
• More coming soon!