640538079564480

Names of 640538079564480

• Cardinal: 640538079564480 can be written as Six hundred forty trillion, five hundred thirty-eight billion, seventy-nine million, five hundred sixty-four thousand, four hundred eighty.

Scientific notation

• Scientific notation: 6.4053807956448 × 10¹⁴

Factors of 640538079564480

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 6303344

Divisors of 640538079564480

• Number of divisors d(n): 112
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 15 16 20 24 30 32 40 48 60 64 80 96 120 160 192 240 320 480 960 107693 215386 323079 430772 538465 646158 861544 1076930 1292316 1615395 1723088 2153860 2584632 3230790 3446176 4307720 5169264 6195641 6461580 6892352 8615440 10338528 12391282 12923160 17230880 18586923 20677056 24782564 25846320 30978205 34461760 37173846 49565128 51692640 61956410 74347692 92934615 99130256 103385280 123912820 148695384 185869230 198260512 247825640 297390768 371738460 396521024 495651280 594781536 743476920 991302560 1189563072 1486953840 1982605120 2973907680 5947815360 667227166213 1334454332426 2001681498639 2668908664852 3336135831065 4003362997278 5337817329704 6672271662130 8006725994556 10008407493195 10675634659408 13344543324260 16013451989112 20016814986390 21351269318816 26689086648520 32026903978224 40033629972780 42702538637632 53378173297040 64053807956448 80067259945560 106756346594080 128107615912896 160134519891120 213512693188160 320269039782240 640538079564480
• Sum of all divisors σ(n): 2033727615182304
• Sum of proper divisors (its aliquot sum) s(n): 1393189535617824
• 640538079564480 is an abundant number, because the sum of its proper divisors (1393189535617824) is greater than itself. Its abundance is 752651456053344

Bases of 640538079564480

• Binary: 10010001101001000011100100101100101001001011000000₂
• Hexadecimal: 0x24690E4B292C0
• Base-36: 6B1V4QDAYO

Squares and roots of 640538079564480

• 640538079564480 squared (640538079564480²) is 410289031372152110986477670400
• 640538079564480 cubed (640538079564480³) is 262805748221488999696025625584058076987392000
• The square root of 640538079564480 is 25308853.7781638781
• The cube root of 640538079564480 is 86201.5320293959

Scales and comparisons

• 640,538,079,564,480 seconds is equal to 20,367,129 years, 32 weeks, 3 hours, 28 minutes.
• To count from 1 to 640,538,079,564,480 would take you about fifty million, nine hundred seventeen thousand, eight hundred twenty-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 640538079564480 cubic inches would be around 7183.5 feet tall.

Recreational maths with 640538079564480

• 640538079564480 backwards is 084465970835046
• The number of decimal digits it has is: 15
• The sum of 640538079564480's digits is 69
• More coming soon!