21455046400

Names of 21455046400

• Cardinal: 21455046400 can be written as Twenty-one billion, four hundred fifty-five million, forty-six thousand, four hundred.

Scientific notation

• Scientific notation: 2.14550464 × 10¹⁰

Factors of 21455046400

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 307

Divisors of 21455046400

• Number of divisors d(n): 162
• Complete list of divisors:
  1 2 4 5 8 10 16 20 25 32 40 50 64 80 100 128 149 151 160 200 256 298 302 320 400 596 604 640 745 755 800 1192 1208 1280 1490 1510 1600 2384 2416 2980 3020 3200 3725 3775 4768 4832 5960 6040 6400 7450 7550 9536 9664 11920 12080 14900 15100 19072 19328 22201 22499 23840 24160 29800 30200 38144 38656 44402 44998 47680 48320 59600 60400 88804 89996 95360 96640 111005 112495 119200 120800 177608 179992 190720 193280 222010 224990 238400 241600 355216 359984 444020 449980 476800 483200 555025 562475 710432 719968 888040 899960 953600 966400 1110050 1124950 1420864 1439936 1776080 1799920 2220100 2249900 2841728 2879872 3352351 3552160 3599840 4440200 4499800 5683456 5759744 6704702 7104320 7199680 8880400 8999600 13409404 14208640 14399360 16761755 17760800 17999200 26818808 28417280 28798720 33523510 35521600 35998400 53637616 67047020 71043200 71996800 83808775 107275232 134094040 142086400 143993600 167617550 214550464 268188080 335235100 429100928 536376160 670470200 858201856 1072752320 1340940400 2145504640 2681880800 4291009280 5363761600 10727523200 21455046400
• Sum of all divisors σ(n): 53817453032
• Sum of proper divisors (its aliquot sum) s(n): 32362406632
• 21455046400 is an abundant number, because the sum of its proper divisors (32362406632) is greater than itself. Its abundance is 10907360232

Bases of 21455046400

• Binary: 10011111110110100100000011100000000₂
• Hexadecimal: 0x4FED20700
• Base-36: 9UTS3R4

Squares and roots of 21455046400

• 21455046400 squared (21455046400²) is 460319016026152960000
• 21455046400 cubed (21455046400³) is 9876165847643455370297344000000
• The square root of 21455046400 is 146475.4122711385
• The cube root of 21455046400 is 2778.7095437493

Scales and comparisons

• 21,455,046,400 seconds is equal to 682 years, 10 weeks, 4 days, 7 hours, 6 minutes, 40 seconds.
• To count from 1 to 21,455,046,400 would take you about one thousand, three hundred sixty-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 21455046400 cubic inches would be around 231.6 feet tall.

Recreational maths with 21455046400

• 21455046400 backwards is 00464055412
• The number of decimal digits it has is: 11
• The sum of 21455046400's digits is 31
• More coming soon!