21231120768

Names of 21231120768

• Cardinal: 21231120768 can be written as Twenty-one billion, two hundred thirty-one million, one hundred twenty thousand, seven hundred sixty-eight.

Scientific notation

• Scientific notation: 2.1231120768 × 10¹⁰

Factors of 21231120768

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 35178

Divisors of 21231120768

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 3 4 6 8 11 12 13 16 22 24 26 32 33 39 44 48 52 64 66 78 88 96 104 121 128 132 143 156 176 192 208 242 264 286 312 352 363 384 416 429 484 528 572 624 704 726 832 858 968 1056 1144 1248 1408 1452 1573 1664 1716 1936 2112 2288 2496 2904 3146 3432 3872 4224 4576 4719 4992 5808 6292 6864 7744 9152 9438 11616 12584 13728 15488 18304 18876 23232 25168 27456 35149 37752 46464 50336 54912 70298 75504 100672 105447 140596 151008 201344 210894 281192 302016 386639 421788 456937 562384 604032 773278 843576 913874 1124768 1159917 1370811 1546556 1687152 1827748 2249536 2319834 2741622 3093112 3374304 3655496 4253029 4499072 4639668 5026307 5483244 6186224 6748608 7310992 8506058 9279336 10052614 10966488 12372448 12759087 13497216 14621984 15078921 17012116 18558672 20105228 21932976 24744896 25518174 29243968 30157842 34024232 37117344 40210456 43865952 49489792 51036348 55289377 58487936 60315684 68048464 74234688 80420912 87731904 102072696 110578754 120631368 136096928 148469376 160841824 165868131 175463808 204145392 221157508 241262736 272193856 321683648 331736262 408290784 442315016 482525472 544387712 643367296 663472524 816581568 884630032 965050944 1326945048 1633163136 1769260064 1930101888 2653890096 3538520128 5307780192 7077040256 10615560384 21231120768
• Sum of all divisors σ(n): 66758286000
• Sum of proper divisors (its aliquot sum) s(n): 45527165232
• 21231120768 is an abundant number, because the sum of its proper divisors (45527165232) is greater than itself. Its abundance is 24296044464

Bases of 21231120768

• Binary: 10011110001011110010011000110000000₂
• Hexadecimal: 0x4F1793180
• Base-36: 9R4GLMO

Squares and roots of 21231120768

• 21231120768 squared (21231120768²) is 450760489065400909824
• 21231120768 cubed (21231120768³) is 9570150380790270166810421624832
• The square root of 21231120768 is 145709.0277505137
• The cube root of 21231120768 is 2769.0086148017

Scales and comparisons

• 21,231,120,768 seconds is equal to 675 years, 4 weeks, 2 days, 13 hours, 32 minutes, 48 seconds.
• To count from 1 to 21,231,120,768 would take you about one thousand, three hundred fifty 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 21231120768 cubic inches would be around 230.8 feet tall.

Recreational maths with 21231120768

• 21231120768 backwards is 86702113212
• 21231120768 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21231120768's digits is 33
• More coming soon!