21000048768

Names of 21000048768

• Cardinal: 21000048768 can be written as Twenty-one billion, forty-eight thousand, seven hundred sixty-eight.

Scientific notation

• Scientific notation: 2.1000048768 × 10¹⁰

Factors of 21000048768

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 6359

Divisors of 21000048768

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 18 24 27 31 32 36 48 54 62 64 72 93 96 108 124 128 144 186 192 216 248 279 288 372 384 432 496 558 576 744 837 864 961 992 1116 1152 1488 1674 1728 1922 1984 2232 2883 2976 3348 3456 3844 3968 4464 5766 5952 6323 6696 7688 8649 8928 11532 11904 12646 13392 15376 17298 17856 18969 23064 25292 25947 26784 30752 34596 35712 37938 46128 50584 51894 53568 56907 61504 69192 75876 92256 101168 103788 107136 113814 123008 138384 151752 170721 184512 196013 202336 207576 227628 276768 303504 341442 369024 392026 404672 415152 455256 553536 588039 607008 682884 784052 809344 830304 910512 1107072 1176078 1214016 1365768 1568104 1660608 1764117 1821024 2352156 2428032 2731536 3136208 3321216 3528234 3642048 4704312 5292351 5463072 6076403 6272416 7056468 7284096 9408624 10584702 10926144 12152806 12544832 14112936 18229209 18817248 21169404 21852288 24305612 25089664 28225872 36458418 37634496 42338808 48611224 54687627 56451744 72916836 75268992 84677616 97222448 109375254 112903488 145833672 164062881 169355232 194444896 218750508 225806976 291667344 328125762 338710464 388889792 437501016 583334688 656251524 677420928 777779584 875002032 1166669376 1312503048 1750004064 2333338752 2625006096 3500008128 5250012192 7000016256 10500024384 21000048768
• Sum of all divisors σ(n): 64053266400
• Sum of proper divisors (its aliquot sum) s(n): 43053217632
• 21000048768 is an abundant number, because the sum of its proper divisors (43053217632) is greater than itself. Its abundance is 22053168864

Bases of 21000048768

• Binary: 10011100011101100110101000010000000₂
• Hexadecimal: 0x4E3B35080
• Base-36: 9NAVXC0

Squares and roots of 21000048768

• 21000048768 squared (21000048768²) is 441002048258378317824
• 21000048768 cubed (21000048768³) is 9261064520213834138897803640832
• The square root of 21000048768 is 144913.9357273827
• The cube root of 21000048768 is 2758.9263120495

Scales and comparisons

• 21,000,048,768 seconds is equal to 667 years, 38 weeks, 2 days, 2 hours, 52 minutes, 48 seconds.
• To count from 1 to 21,000,048,768 would take you about one thousand, three hundred thirty-five 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 21000048768 cubic inches would be around 229.9 feet tall.

Recreational maths with 21000048768

• 21000048768 backwards is 86784000012
• 21000048768 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21000048768's digits is 36
• More coming soon!