21145143184

Names of 21145143184

• Cardinal: 21145143184 can be written as Twenty-one billion, one hundred forty-five million, one hundred forty-three thousand, one hundred eighty-four.

Scientific notation

• Scientific notation: 2.1145143184 × 10¹⁰

Factors of 21145143184

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 747

Divisors of 21145143184

• Number of divisors d(n): 160
• Complete list of divisors:
  1 2 4 8 11 16 17 22 34 44 67 68 88 134 136 176 187 268 272 313 337 374 536 626 674 737 748 1072 1139 1252 1348 1474 1496 2278 2504 2696 2948 2992 3443 3707 4556 5008 5321 5392 5729 5896 6886 7414 9112 10642 11458 11792 12529 13772 14828 18224 20971 21284 22579 22916 25058 27544 29656 41942 42568 45158 45832 50116 55088 58531 59312 63019 83884 85136 90316 91664 100232 105481 117062 126038 167768 180632 200464 210962 230681 234124 248369 252076 335536 356507 361264 383843 421924 461362 468248 496738 504152 713014 767686 843848 922724 936496 993476 1008304 1160291 1426028 1535372 1687696 1793177 1845448 1986952 2320582 2852056 3070744 3586354 3690896 3921577 3973904 4222273 4641164 5704112 6141488 7067227 7172708 7843154 8444546 9282328 14134454 14345416 15686308 16889092 18564656 19724947 28268908 28690832 31372616 33778184 39449894 56537816 62745232 67556368 77739497 78899788 113075632 120142859 155478994 157799576 240285718 310957988 315599152 480571436 621915976 961142872 1243831952 1321571449 1922285744 2643142898 5286285796 10572571592 21145143184
• Sum of all divisors σ(n): 48324871296
• Sum of proper divisors (its aliquot sum) s(n): 27179728112
• 21145143184 is an abundant number, because the sum of its proper divisors (27179728112) is greater than itself. Its abundance is 6034584928

Bases of 21145143184

• Binary: 10011101100010110010100011110010000₂
• Hexadecimal: 0x4EC594790
• Base-36: 9PP9SWG

Squares and roots of 21145143184

• 21145143184 squared (21145143184²) is 447117080271861657856
• 21145143184 cubed (21145143184³) is 9454354682360536401604738453504
• The square root of 21145143184 is 145413.6966863851
• The cube root of 21145143184 is 2765.2657638415

Scales and comparisons

• 21,145,143,184 seconds is equal to 672 years, 18 weeks, 1 day, 10 hours, 53 minutes, 4 seconds.
• To count from 1 to 21,145,143,184 would take you about one thousand, three hundred forty-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 21145143184 cubic inches would be around 230.4 feet tall.

Recreational maths with 21145143184

• 21145143184 backwards is 48134154112
• 21145143184 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21145143184's digits is 34
• More coming soon!