1213405900

Names of 1213405900

• Cardinal: 1213405900 can be written as One billion, two hundred thirteen million, four hundred five thousand, nine hundred.

Scientific notation

• Scientific notation: 1.2134059 × 10⁹

Factors of 1213405900

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 413

Divisors of 1213405900

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 4 5 7 10 14 20 25 28 35 50 61 70 100 122 140 157 175 181 244 305 314 350 362 427 610 628 700 724 785 854 905 1099 1220 1267 1525 1570 1708 1810 2135 2198 2534 3050 3140 3620 3925 4270 4396 4525 5068 5495 6100 6335 7850 8540 9050 9577 10675 10990 11041 12670 15700 18100 19154 21350 21980 22082 25340 27475 28417 31675 38308 42700 44164 47885 54950 55205 56834 63350 67039 77287 95770 109900 110410 113668 126700 134078 142085 154574 191540 198919 220820 239425 268156 276025 284170 309148 335195 386435 397838 478850 552050 568340 670390 710425 772870 795676 957700 994595 1104100 1340780 1420850 1545740 1675975 1733437 1932175 1989190 2841700 3351950 3466874 3864350 3978380 4972975 6703900 6933748 7728700 8667185 9945950 12134059 17334370 19891900 24268118 34668740 43335925 48536236 60670295 86671850 121340590 173343700 242681180 303351475 606702950 1213405900
• Sum of all divisors σ(n): 3095065792
• Sum of proper divisors (its aliquot sum) s(n): 1881659892
• 1213405900 is an abundant number, because the sum of its proper divisors (1881659892) is greater than itself. Its abundance is 668253992

Bases of 1213405900

• Binary: 1001000010100110001101011001100₂
• Hexadecimal: 0x48531ACC
• Base-36: K2FHZG

Squares and roots of 1213405900

• 1213405900 squared (1213405900²) is 1472353878154810000
• 1213405900 cubed (1213405900³) is 1786562882640927567379000000
• The square root of 1213405900 is 34833.9762301119
• The cube root of 1213405900 is 1066.6011168485

Scales and comparisons

• 1,213,405,900 seconds is equal to 38 years, 30 weeks, 2 days, 1 hour, 11 minutes, 40 seconds.
• To count from 1 to 1,213,405,900 would take you about seventy-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 1213405900 cubic inches would be around 88.9 feet tall.

Recreational maths with 1213405900

• 1213405900 backwards is 0095043121
• 1213405900 is a Harshad number.
• The number of decimal digits it has is: 10
• The sum of 1213405900's digits is 25
• More coming soon!