21140532720

Names of 21140532720

• Cardinal: 21140532720 can be written as Twenty-one billion, one hundred forty million, five hundred thirty-two thousand, seven hundred twenty.

Scientific notation

• Scientific notation: 2.114053272 × 10¹⁰

Factors of 21140532720

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 371758

Divisors of 21140532720

• Number of divisors d(n): 120
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 30 36 40 45 48 60 72 79 80 90 120 144 158 180 237 240 316 360 395 474 632 711 720 790 948 1185 1264 1422 1580 1896 2370 2844 3160 3555 3792 4740 5688 6320 7110 9480 11376 14220 18960 28440 56880 371669 743338 1115007 1486676 1858345 2230014 2973352 3345021 3716690 4460028 5575035 5946704 6690042 7433380 8920056 11150070 13380084 14866760 16725105 17840112 22300140 26760168 29361851 29733520 33450210 44600280 53520336 58723702 66900420 88085553 89200560 117447404 133800840 146809255 176171106 234894808 264256659 267601680 293618510 352342212 440427765 469789616 528513318 587237020 704684424 880855530 1057026636 1174474040 1321283295 1409368848 1761711060 2114053272 2348948080 2642566590 3523422120 4228106544 5285133180 7046844240 10570266360 21140532720
• Sum of all divisors σ(n): 71895844800
• Sum of proper divisors (its aliquot sum) s(n): 50755312080
• 21140532720 is an abundant number, because the sum of its proper divisors (50755312080) is greater than itself. Its abundance is 29614779360

Bases of 21140532720

• Binary: 10011101100000100101110110111110000₂
• Hexadecimal: 0x4EC12EDF0
• Base-36: 9PMIZG0

Squares and roots of 21140532720

• 21140532720 squared (21140532720²) is 446922123685390598400
• 21140532720 cubed (21140532720³) is 9448171779062886931455579648000
• The square root of 21140532720 is 145397.8429000925
• The cube root of 21140532720 is 2765.0647707207

Scales and comparisons

• 21,140,532,720 seconds is equal to 672 years, 10 weeks, 4 days, 2 hours, 12 minutes.
• To count from 1 to 21,140,532,720 would take you about one thousand, three hundred forty-four 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 21140532720 cubic inches would be around 230.4 feet tall.

Recreational maths with 21140532720

• 21140532720 backwards is 02723504112
• The number of decimal digits it has is: 11
• The sum of 21140532720's digits is 27
• More coming soon!