21354072012

Names of 21354072012

• Cardinal: 21354072012 can be written as Twenty-one billion, three hundred fifty-four million, seventy-two thousand and twelve.

Scientific notation

• Scientific notation: 2.1354072012 × 10¹⁰

Factors of 21354072012

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 310422

Divisors of 21354072012

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 3 4 6 7 9 12 13 14 18 21 26 27 28 36 39 42 49 52 54 63 78 84 91 98 108 117 126 147 156 182 189 196 234 252 273 294 351 364 378 441 468 546 588 637 702 756 819 882 1092 1274 1323 1404 1638 1764 1911 2457 2548 2646 3276 3822 4914 5292 5733 7644 9828 11466 17199 22932 34398 68796 310397 620794 931191 1241588 1862382 2172779 2793573 3724764 4035161 4345558 5587146 6518337 8070322 8380719 8691116 11174292 12105483 13036674 15209453 16140644 16761438 19555011 24210966 26073348 28246127 30418906 33522876 36316449 39110022 45628359 48421932 56492254 58665033 60837812 72632898 78220044 84738381 91256718 108949347 112984508 117330066 136885077 145265796 169476762 182513436 197722889 217898694 234660132 254215143 273770154 338953524 395445778 410655231 435797388 508430286 547540308 593168667 762645429 790891556 821310462 1016860572 1186337334 1525290858 1642620924 1779506001 2372674668 3050581716 3559012002 5338518003 7118024004 10677036006 21354072012
• Sum of all divisors σ(n): 69355329120
• Sum of proper divisors (its aliquot sum) s(n): 48001257108
• 21354072012 is an abundant number, because the sum of its proper divisors (48001257108) is greater than itself. Its abundance is 26647185096

Bases of 21354072012

• Binary: 10011111000110011010100011111001100₂
• Hexadecimal: 0x4F8CD47CC
• Base-36: 9T5NVF0

Squares and roots of 21354072012

• 21354072012 squared (21354072012²) is 455996391493681728144
• 21354072012 cubed (21354072012³) is 9737379781168223865795583105728
• The square root of 21354072012 is 146130.3254358931
• The cube root of 21354072012 is 2774.3435186311

Scales and comparisons

• 21,354,072,012 seconds is equal to 678 years, 51 weeks, 4 days, 14 hours, 40 minutes, 12 seconds.
• To count from 1 to 21,354,072,012 would take you about one thousand, three hundred fifty-seven 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 21354072012 cubic inches would be around 231.2 feet tall.

Recreational maths with 21354072012

• 21354072012 backwards is 21027045312
• 21354072012 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21354072012's digits is 27
• More coming soon!