21412788640

Names of 21412788640

• Cardinal: 21412788640 can be written as Twenty-one billion, four hundred twelve million, seven hundred eighty-eight thousand, six hundred forty.

Scientific notation

• Scientific notation: 2.141278864 × 10¹⁰

Factors of 21412788640

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 23766

Divisors of 21412788640

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 4 5 8 10 16 20 32 40 53 80 106 107 160 212 214 265 424 428 530 535 848 856 1060 1070 1696 1712 2120 2140 3424 4240 4280 5671 8480 8560 11342 17120 22684 23599 28355 45368 47198 56710 90736 94396 113420 117995 181472 188792 226840 235990 377584 453680 471980 755168 907360 943960 1250747 1887920 2501494 2525093 3775840 5002988 5050186 6253735 10005976 10100372 12507470 12625465 20011952 20200744 25014940 25250930 40023904 40401488 50029880 50501860 80802976 100059760 101003720 133829929 200119520 202007440 267659858 404014880 535319716 669149645 1070639432 1338299290 2141278864 2676598580 4282557728 5353197160 10706394320 21412788640
• Sum of all divisors σ(n): 52026105600
• Sum of proper divisors (its aliquot sum) s(n): 30613316960
• 21412788640 is an abundant number, because the sum of its proper divisors (30613316960) is greater than itself. Its abundance is 9200528320

Bases of 21412788640

• Binary: 10011111100010011010011100110100000₂
• Hexadecimal: 0x4FC4D39A0
• Base-36: 9U4MDGG

Squares and roots of 21412788640

• 21412788640 squared (21412788640²) is 458507517341313049600
• 21412788640 cubed (21412788640³) is 9817924558680671071158636544000
• The square root of 21412788640 is 146331.0925265031
• The cube root of 21412788640 is 2776.8840335703

Scales and comparisons

• 21,412,788,640 seconds is equal to 680 years, 44 weeks, 5 days, 4 hours, 50 minutes, 40 seconds.
• To count from 1 to 21,412,788,640 would take you about one thousand, three hundred sixty-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 21412788640 cubic inches would be around 231.4 feet tall.

Recreational maths with 21412788640

• 21412788640 backwards is 04688721412
• The number of decimal digits it has is: 11
• The sum of 21412788640's digits is 43
• More coming soon!