812481021

Names of 812481021

• Cardinal: 812481021 can be written as Eight hundred twelve million, four hundred eighty-one thousand and twenty-one.

Scientific notation

• Scientific notation: 8.12481021 × 10⁸

Factors of 812481021

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 264

Divisors of 812481021

• Number of divisors d(n): 96
• Complete list of divisors:
  1 3 9 11 19 33 57 61 73 97 99 171 183 209 219 291 549 627 657 671 803 873 1067 1159 1387 1843 1881 2013 2409 3201 3477 4161 4453 5529 5917 6039 7081 7227 9603 10431 12483 12749 13359 15257 16587 17751 20273 21243 38247 40077 45771 48983 53253 60819 63729 65087 77891 84607 112423 114741 134539 137313 146949 182457 195261 233673 253821 337269 403617 431941 440847 585783 701019 761463 930677 1011807 1210851 1236653 1295823 1479929 2792031 3709959 3887469 4439787 4751351 8206879 8376093 11129877 13319361 14254053 24620637 42762159 73861911 90275669 270827007 812481021
• Sum of all divisors σ(n): 1402826880
• Sum of proper divisors (its aliquot sum) s(n): 590345859
• 812481021 is a deficient number, because the sum of its proper divisors (590345859) is less than itself. Its deficiency is 222135162

Bases of 812481021

• Binary: 110000011011010111100111111101₂
• Hexadecimal: 0x306D79FD
• Base-36: DFQAD9

Squares and roots of 812481021

• 812481021 squared (812481021²) is 660125409485202441
• 812481021 cubed (812481021³) is 536339366686580363655372261
• The square root of 812481021 is 28504.0527118513
• The cube root of 812481021 is 933.1205235755

Scales and comparisons

• 812,481,021 seconds is equal to 25 years, 43 weeks, 2 days, 17 hours, 10 minutes, 21 seconds.
• To count from 1 to 812,481,021 would take you about thirty-eight 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 812481021 cubic inches would be around 77.8 feet tall.

Recreational maths with 812481021

• 812481021 backwards is 120184218
• The number of decimal digits it has is: 9
• The sum of 812481021's digits is 27
• More coming soon!