21133131768

Names of 21133131768

• Cardinal: 21133131768 can be written as Twenty-one billion, one hundred thirty-three million, one hundred thirty-one thousand, seven hundred sixty-eight.

Scientific notation

• Scientific notation: 2.1133131768 × 10¹⁰

Factors of 21133131768

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 19669

Divisors of 21133131768

• Number of divisors d(n): 256
• Complete list of divisors:
  1 2 3 4 6 7 8 9 12 14 18 21 23 24 27 28 31 36 42 46 54 56 62 63 69 72 84 92 93 108 124 126 138 161 168 184 186 189 207 216 217 248 252 276 279 322 372 378 414 434 483 504 552 558 621 644 651 713 744 756 828 837 868 966 1116 1242 1288 1302 1426 1449 1512 1656 1674 1736 1932 1953 2139 2232 2484 2604 2852 2898 3348 3864 3906 4278 4347 4968 4991 5208 5704 5796 5859 6417 6696 7812 8556 8694 9982 11592 11718 12834 14973 15624 17112 17388 19251 19603 19964 23436 25668 29946 34776 38502 39206 39928 44919 46872 51336 58809 59892 77004 78412 89838 117618 119784 134757 137221 154008 156824 176427 179676 235236 269514 274442 352854 359352 411663 450869 470472 529281 539028 548884 607693 705708 823326 901738 1058562 1078056 1097768 1215386 1234989 1352607 1411416 1646652 1803476 1823079 2117124 2430772 2469978 2705214 3156083 3293304 3606952 3646158 3704967 4057821 4234248 4253851 4861544 4939956 5410428 5469237 6312166 7292316 7409934 8115642 8507702 9468249 9879912 10820856 10938474 12173463 12624332 12761553 13976939 14584632 14819868 16231284 16407711 17015404 18936498 21876948 24346926 25248664 25523106 27953878 28404747 29639736 32462568 32815422 34030808 37872996 38284659 41930817 43753896 48693852 51046212 55907756 56809494 65630844 75745992 76569318 83861634 85214241 97387704 97838573 102092424 111815512 113618988 114853977 125792451 131261688 153138636 167723268 170428482 195677146 227237976 229707954 251584902 293515719 306277272 335446536 340856964 377377353 391354292 459415908 503169804 587031438 681713928 754754706 782708584 880547157 918831816 1006339608 1174062876 1509509412 1761094314 2348125752 2641641471 3019018824 3522188628 5283282942 7044377256 10566565884 21133131768
• Sum of all divisors σ(n): 72268185600
• Sum of proper divisors (its aliquot sum) s(n): 51135053832
• 21133131768 is an abundant number, because the sum of its proper divisors (51135053832) is greater than itself. Its abundance is 30001922064

Bases of 21133131768

• Binary: 10011101011101000011111111111111000₂
• Hexadecimal: 0x4EBA1FFF8
• Base-36: 9PI4CU0

Squares and roots of 21133131768

• 21133131768 squared (21133131768²) is 446609258323650805824
• 21133131768 cubed (21133131768³) is 9438252304962463270297973816832
• The square root of 21133131768 is 145372.3899782899
• The cube root of 21133131768 is 2764.7420651953

Scales and comparisons

• 21,133,131,768 seconds is equal to 671 years, 50 weeks, 2 days, 10 hours, 22 minutes, 48 seconds.
• To count from 1 to 21,133,131,768 would take you about one thousand, three hundred forty-three 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 21133131768 cubic inches would be around 230.4 feet tall.

Recreational maths with 21133131768

• 21133131768 backwards is 86713133112
• 21133131768 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21133131768's digits is 36
• More coming soon!