64130640

Names of 64130640

• Cardinal: 64130640 can be written as Sixty-four million, one hundred thirty thousand, six hundred forty.

Scientific notation

• Scientific notation: 6.413064 × 10⁷

Factors of 64130640

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 723

Divisors of 64130640

• Number of divisors d(n): 160
• Complete list of divisors:
  1 2 3 4 5 6 7 8 10 12 14 15 16 20 21 24 28 30 35 40 42 48 56 59 60 70 80 84 105 112 118 120 140 168 177 210 236 240 280 295 336 354 413 420 472 560 590 647 708 826 840 885 944 1180 1239 1294 1416 1652 1680 1770 1941 2065 2360 2478 2588 2832 3235 3304 3540 3882 4130 4529 4720 4956 5176 6195 6470 6608 7080 7764 8260 9058 9705 9912 10352 12390 12940 13587 14160 15528 16520 18116 19410 19824 22645 24780 25880 27174 31056 33040 36232 38173 38820 45290 49560 51760 54348 67935 72464 76346 77640 90580 99120 108696 114519 135870 152692 155280 181160 190865 217392 229038 267211 271740 305384 362320 381730 458076 534422 543480 572595 610768 763460 801633 916152 1068844 1086960 1145190 1336055 1526920 1603266 1832304 2137688 2290380 2672110 3053840 3206532 4008165 4275376 4580760 5344220 6413064 8016330 9161520 10688440 12826128 16032660 21376880 32065320 64130640
• Sum of all divisors σ(n): 231413760
• Sum of proper divisors (its aliquot sum) s(n): 167283120
• 64130640 is an abundant number, because the sum of its proper divisors (167283120) is greater than itself. Its abundance is 103152480

Bases of 64130640

• Binary: 11110100101000111001010000₂
• Hexadecimal: 0x3D28E50
• Base-36: 126JIO

Squares and roots of 64130640

• 64130640 squared (64130640²) is 4112738986809600
• 64130640 cubed (64130640³) is 263752583377051206144000
• The square root of 64130640 is 8008.1608375457
• The cube root of 64130640 is 400.2719816897

Scales and comparisons

• 64,130,640 seconds is equal to 2 years, 2 weeks, 6 hours, 4 minutes.
• To count from 1 to 64,130,640 would take you about 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 64130640 cubic inches would be around 33.4 feet tall.

Recreational maths with 64130640

• 64130640 backwards is 04603146
• 64130640 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 64130640's digits is 24
• More coming soon!