640349150

Names of 640349150

• Cardinal: 640349150 can be written as Six hundred forty million, three hundred forty-nine thousand, one hundred fifty.

Scientific notation

• Scientific notation: 6.4034915 × 10⁸

Factors of 640349150

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 211

Divisors of 640349150

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 5 7 10 14 25 35 47 49 50 67 70 83 94 98 134 166 175 235 245 329 335 350 415 469 470 490 581 658 670 830 938 1162 1175 1225 1645 1675 2075 2303 2345 2350 2450 2905 3149 3283 3290 3350 3901 4067 4150 4606 4690 5561 5810 6298 6566 7802 8134 8225 11122 11515 11725 14525 15745 16415 16450 19505 20335 22043 23030 23450 27307 27805 29050 31490 32830 38927 39010 40670 44086 54614 55610 57575 77854 78725 82075 97525 101675 110215 115150 136535 139025 154301 157450 164150 191149 194635 195050 203350 220430 261367 272489 273070 278050 308602 382298 389270 522734 544978 551075 682675 771505 955745 973175 1102150 1306835 1362445 1365350 1543010 1829569 1911490 1946350 2613670 2724890 3659138 3857525 4778725 6534175 6812225 7715050 9147845 9557450 12806983 13068350 13624450 18295690 25613966 45739225 64034915 91478450 128069830 320174575 640349150
• Sum of all divisors σ(n): 1453406976
• Sum of proper divisors (its aliquot sum) s(n): 813057826
• 640349150 is an abundant number, because the sum of its proper divisors (813057826) is greater than itself. Its abundance is 172708676

Bases of 640349150

• Binary: 100110001010101111001111011110₂
• Hexadecimal: 0x262AF3DE
• Base-36: AL8WKE

Squares and roots of 640349150

• 640349150 squared (640349150²) is 410047033905722500
• 640349150 cubed (640349150³) is 262573269621550583010875000
• The square root of 640349150 is 25305.1210232237
• The cube root of 640349150 is 861.9305602051

Scales and comparisons

• 640,349,150 seconds is equal to 20 years, 18 weeks, 5 days, 10 hours, 45 minutes, 50 seconds.
• To count from 1 to 640,349,150 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 640349150 cubic inches would be around 71.8 feet tall.

Recreational maths with 640349150

• 640349150 backwards is 051943046
• The number of decimal digits it has is: 9
• The sum of 640349150's digits is 32
• More coming soon!