640764794313

Names of 640764794313

• Cardinal: 640764794313 can be written as Six hundred forty billion, seven hundred sixty-four million, seven hundred ninety-four thousand, three hundred thirteen.

Scientific notation

• Scientific notation: 6.40764794313 × 10¹¹

Factors of 640764794313

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 2369

Divisors of 640764794313

• Number of divisors d(n): 120
• Complete list of divisors:
  1 3 7 9 21 27 49 63 81 147 189 193 441 503 567 579 1323 1351 1509 1663 1737 3521 3969 4053 4527 4989 5211 9457 10563 11641 12159 13581 14967 15633 24647 28371 31689 34923 36477 40743 44901 73941 81487 85113 95067 97079 104769 109431 134703 221823 244461 255339 285201 291237 314307 320959 665469 679553 733383 766017 836489 873711 942921 962877 1996407 2038659 2200149 2246713 2509467 2621133 2888631 4756871 5855423 6115977 6600447 6740139 7528401 7863399 8665893 14270613 15726991 17566269 18347931 20220417 22585203 25997679 40987961 42811839 47180973 52698807 55043793 60661251 67755609 122963883 128435517 141542919 158096421 161442377 181983753 368891649 385306551 424628757 474289263 484327131 1106674947 1130096639 1273886271 1452981393 3320024841 3390289917 4358944179 7910676473 10170869751 13076832537 23732029419 30512609253 71196088257 91537827759 213588264771 640764794313
• Sum of all divisors σ(n): 1122136823808
• Sum of proper divisors (its aliquot sum) s(n): 481372029495
• 640764794313 is a deficient number, because the sum of its proper divisors (481372029495) is less than itself. Its deficiency is 159392764818

Bases of 640764794313

• Binary: 1001010100110000100011101101010111001001₂
• Hexadecimal: 0x95308ED5C9
• Base-36: 86D2TBK9

Squares and roots of 640764794313

• 640764794313 squared (640764794313²) is 410579521630981197141969
• 640764794313 cubed (640764794313³) is 263084902727005601075044269744822297
• The square root of 640764794313 is 800477.8537305077
• The cube root of 640764794313 is 8621.1701007637

Scales and comparisons

• 640,764,794,313 seconds is equal to 20,374 years, 17 weeks, 4 days, 4 hours, 38 minutes, 33 seconds.
• To count from 1 to 640,764,794,313 would take you about forty thousand, seven hundred forty-eight 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 640764794313 cubic inches would be around 718.4 feet tall.

Recreational maths with 640764794313

• 640764794313 backwards is 313497467046
• The number of decimal digits it has is: 12
• The sum of 640764794313's digits is 54
• More coming soon!