21987988096164

Names of 21987988096164

• Cardinal: 21987988096164 can be written as Twenty-one trillion, nine hundred eighty-seven billion, nine hundred eighty-eight million, ninety-six thousand, one hundred sixty-four.

Scientific notation

• Scientific notation: 2.1987988096164 × 10¹³

Factors of 21987988096164

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 1335

Divisors of 21987988096164

• Number of divisors d(n): 72
• Complete list of divisors:
  1 2 3 4 6 12 107 214 321 428 642 1223 1284 2446 3669 4892 7338 11449 14676 22898 34347 45796 68694 130861 137388 261722 392583 523444 785166 1225043 1495729 1570332 2450086 2991458 3675129 4487187 4900172 5982916 7350258 8974374 14002127 14700516 17948748 28004254 42006381 56008508 84012762 160043003 168025524 320086006 480129009 640172012 960258018 1498227589 1920516036 2996455178 4494682767 5992910356 8989365534 17124601321 17978731068 34249202642 51373803963 68498405284 102747607926 205495215852 1832332341347 3664664682694 5496997024041 7329329365388 10993994048082 21987988096164
• Sum of all divisors σ(n): 51831698234400
• Sum of proper divisors (its aliquot sum) s(n): 29843710138236
• 21987988096164 is an abundant number, because the sum of its proper divisors (29843710138236) is greater than itself. Its abundance is 7855722042072

Bases of 21987988096164

• Binary: 100111111111101111010001110000100010010100100₂
• Hexadecimal: 0x13FF7A3844A4
• Base-36: 7SL54EDNO

Squares and roots of 21987988096164

• 21987988096164 squared (21987988096164²) is 483471620517049765311514896
• 21987988096164 cubed (21987988096164³) is 10630568236762008950473979426485766458944
• The square root of 21987988096164 is 4689135.1117411835
• The cube root of 21987988096164 is 28015.2927073843

Scales and comparisons

• 21,987,988,096,164 seconds is equal to 699,150 years, 2 days, 23 hours, 9 minutes, 24 seconds.
• To count from 1 to 21,987,988,096,164 would take you about one million, seven hundred forty-seven thousand, eight hundred seventy-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 21987988096164 cubic inches would be around 2334.6 feet tall.

Recreational maths with 21987988096164

• 21987988096164 backwards is 46169088978912
• The number of decimal digits it has is: 14
• The sum of 21987988096164's digits is 78
• More coming soon!