21971394200

Names of 21971394200

• Cardinal: 21971394200 can be written as Twenty-one billion, nine hundred seventy-one million, three hundred ninety-four thousand, two hundred.

Scientific notation

• Scientific notation: 2.19713942 × 10¹⁰

Factors of 21971394200

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 3010

Divisors of 21971394200

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 4 5 7 8 10 14 20 25 28 35 40 49 50 56 70 98 100 140 175 196 200 245 280 350 392 490 700 980 1225 1400 1453 1543 1960 2450 2906 3086 4900 5812 6172 7265 7715 9800 10171 10801 11624 12344 14530 15430 20342 21602 29060 30860 36325 38575 40684 43204 50855 54005 58120 61720 71197 72650 75607 77150 81368 86408 101710 108010 142394 145300 151214 154300 203420 216020 254275 270025 284788 290600 302428 308600 355985 378035 406840 432040 508550 540050 569576 604856 711970 756070 1017100 1080100 1423940 1512140 1779925 1890175 2034200 2160200 2241979 2847880 3024280 3559850 3780350 4483958 7119700 7560700 8967916 11209895 14239400 15121400 15693853 17935832 22419790 31387706 44839580 56049475 62775412 78469265 89679160 109856971 112098950 125550824 156938530 219713942 224197900 313877060 392346325 439427884 448395800 549284855 627754120 784692650 878855768 1098569710 1569385300 2197139420 2746424275 3138770600 4394278840 5492848550 10985697100 21971394200
• Sum of all divisors σ(n): 59503088880
• Sum of proper divisors (its aliquot sum) s(n): 37531694680
• 21971394200 is an abundant number, because the sum of its proper divisors (37531694680) is greater than itself. Its abundance is 15560300480

Bases of 21971394200

• Binary: 10100011101100110001101111010011000₂
• Hexadecimal: 0x51D98DE98
• Base-36: A3D789K

Squares and roots of 21971394200

• 21971394200 squared (21971394200²) is 482742163091793640000
• 21971394200 cubed (21971394200³) is 10606518362250488849492888000000
• The square root of 21971394200 is 148227.5082432409
• The cube root of 21971394200 is 2800.8243406175

Scales and comparisons

• 21,971,394,200 seconds is equal to 698 years, 32 weeks, 2 days, 13 hours, 3 minutes, 20 seconds.
• To count from 1 to 21,971,394,200 would take you about one thousand, three hundred ninety-seven 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 21971394200 cubic inches would be around 233.4 feet tall.

Recreational maths with 21971394200

• 21971394200 backwards is 00249317912
• The number of decimal digits it has is: 11
• The sum of 21971394200's digits is 38
• More coming soon!