21207364653672

Names of 21207364653672

• Cardinal: 21207364653672 can be written as Twenty-one trillion, two hundred seven billion, three hundred sixty-four million, six hundred fifty-three thousand, six hundred seventy-two.

Scientific notation

• Scientific notation: 2.1207364653672 × 10¹³

Factors of 21207364653672

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 36897639

Divisors of 21207364653672

• Number of divisors d(n): 80
• Complete list of divisors:
  1 2 3 4 6 8 9 12 18 24 27 36 54 72 81 108 162 216 324 648 887 1774 2661 3548 5322 7096 7983 10644 15966 21288 23949 31932 47898 63864 71847 95796 143694 191592 287388 574776 36896747 73793494 110690241 147586988 221380482 295173976 332070723 442760964 664141446 885521928 996212169 1328282892 1992424338 2656565784 2988636507 3984848676 5977273014 7969697352 11954546028 23909092056 32727414589 65454829178 98182243767 130909658356 196364487534 261819316712 294546731301 392728975068 589093462602 785457950136 883640193903 1178186925204 1767280387806 2356373850408 2650920581709 3534560775612 5301841163418 7069121551224 10603682326836 21207364653672
• Sum of all divisors σ(n): 59467226686560
• Sum of proper divisors (its aliquot sum) s(n): 38259862032888
• 21207364653672 is an abundant number, because the sum of its proper divisors (38259862032888) is greater than itself. Its abundance is 17052497379216

Bases of 21207364653672

• Binary: 100110100100110111001011011111101001001101000₂
• Hexadecimal: 0x1349B96FD268
• Base-36: 7IMJ1CUI0

Squares and roots of 21207364653672

• 21207364653672 squared (21207364653672²) is 449752315553816508503083584
• 21207364653672 cubed (21207364653672³) is 9538061359783143897728333434540228520448
• The square root of 21207364653672 is 4605145.4541275891
• The cube root of 21207364653672 is 27679.7545478593

Scales and comparisons

• 21,207,364,653,672 seconds is equal to 674,328 years, 31 weeks, 10 hours, 1 minute, 12 seconds.
• To count from 1 to 21,207,364,653,672 would take you about one million, six hundred eighty-five thousand, eight hundred twenty-one 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 21207364653672 cubic inches would be around 2306.6 feet tall.

Recreational maths with 21207364653672

• 21207364653672 backwards is 27635646370212
• 21207364653672 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 21207364653672's digits is 54
• More coming soon!