21379124160

Names of 21379124160

• Cardinal: 21379124160 can be written as Twenty-one billion, three hundred seventy-nine million, one hundred twenty-four thousand, one hundred sixty.

Scientific notation

• Scientific notation: 2.137912416 × 10¹⁰

Factors of 21379124160

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 7423317

Divisors of 21379124160

• Number of divisors d(n): 84
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 30 32 36 40 45 48 60 64 72 80 90 96 120 144 160 180 192 240 288 320 360 480 576 720 960 1440 2880 7423307 14846614 22269921 29693228 37116535 44539842 59386456 66809763 74233070 89079684 111349605 118772912 133619526 148466140 178159368 222699210 237545824 267239052 296932280 334048815 356318736 445398420 475091648 534478104 593864560 668097630 712637472 890796840 1068956208 1187729120 1336195260 1425274944 1781593680 2137912416 2375458240 2672390520 3563187360 4275824832 5344781040 7126374720 10689562080 21379124160
• Sum of all divisors σ(n): 73535289048
• Sum of proper divisors (its aliquot sum) s(n): 52156164888
• 21379124160 is an abundant number, because the sum of its proper divisors (52156164888) is greater than itself. Its abundance is 30777040728

Bases of 21379124160

• Binary: 10011111010010010111000101111000000₂
• Hexadecimal: 0x4FA4B8BC0
• Base-36: 9TKKTS0

Squares and roots of 21379124160

• 21379124160 squared (21379124160²) is 457066949848695705600
• 21379124160 cubed (21379124160³) is 9771691070247758704081207296000
• The square root of 21379124160 is 146216.0188214683
• The cube root of 21379124160 is 2775.4280284485

Scales and comparisons

• 21,379,124,160 seconds is equal to 679 years, 41 weeks, 13 hours, 36 minutes.
• To count from 1 to 21,379,124,160 would take you about one thousand, three hundred fifty-nine 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 21379124160 cubic inches would be around 231.3 feet tall.

Recreational maths with 21379124160

• 21379124160 backwards is 06142197312
• 21379124160 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21379124160's digits is 36
• More coming soon!