20311428672

Names of 20311428672

• Cardinal: 20311428672 can be written as Twenty billion, three hundred eleven million, four hundred twenty-eight thousand, six hundred seventy-two.

Scientific notation

• Scientific notation: 2.0311428672 × 10¹⁰

Factors of 20311428672

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 11754304

Divisors of 20311428672

• Number of divisors d(n): 56
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 18 24 27 32 36 48 54 64 72 96 108 144 192 216 288 432 576 864 1728 11754299 23508598 35262897 47017196 70525794 94034392 105788691 141051588 188068784 211577382 282103176 317366073 376137568 423154764 564206352 634732146 752275136 846309528 1128412704 1269464292 1692619056 2256825408 2538928584 3385238112 5077857168 6770476224 10155714336 20311428672
• Sum of all divisors σ(n): 59711844000
• Sum of proper divisors (its aliquot sum) s(n): 39400415328
• 20311428672 is an abundant number, because the sum of its proper divisors (39400415328) is greater than itself. Its abundance is 19088986656

Bases of 20311428672

• Binary: 10010111010101001111100111001000000₂
• Hexadecimal: 0x4BAA7CE40
• Base-36: 9BWWEO0

Squares and roots of 20311428672

• 20311428672 squared (20311428672²) is 412554134697743683584
• 20311428672 cubed (20311428672³) is 8379563880251901108454953320448
• The square root of 20311428672 is 142518.1696205785
• The cube root of 20311428672 is 2728.4342379989

Scales and comparisons

• 20,311,428,672 seconds is equal to 645 years, 43 weeks, 4 days, 23 hours, 31 minutes, 12 seconds.
• To count from 1 to 20,311,428,672 would take you about one thousand, two hundred ninety-one 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 20311428672 cubic inches would be around 227.4 feet tall.

Recreational maths with 20311428672

• 20311428672 backwards is 27682411302
• 20311428672 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 20311428672's digits is 36
• More coming soon!