1218796140

Names of 1218796140

• Cardinal: 1218796140 can be written as One billion, two hundred eighteen million, seven hundred ninety-six thousand, one hundred forty.

Scientific notation

• Scientific notation: 1.21879614 × 10⁹

Factors of 1218796140

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 965

Divisors of 1218796140

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 3 4 5 6 10 12 15 20 30 60 127 254 307 381 508 521 614 635 762 921 1042 1228 1270 1524 1535 1563 1842 1905 2084 2540 2605 3070 3126 3684 3810 4605 5210 6140 6252 7620 7815 9210 10420 15630 18420 31260 38989 66167 77978 116967 132334 155956 159947 194945 198501 233934 264668 319894 330835 389890 397002 467868 479841 584835 639788 661670 779780 794004 799735 959682 992505 1169670 1323340 1599470 1919364 1985010 2339340 2399205 3198940 3970020 4798410 9596820 20313269 40626538 60939807 81253076 101566345 121879614 203132690 243759228 304699035 406265380 609398070 1218796140
• Sum of all divisors σ(n): 3457327104
• Sum of proper divisors (its aliquot sum) s(n): 2238530964
• 1218796140 is an abundant number, because the sum of its proper divisors (2238530964) is greater than itself. Its abundance is 1019734824

Bases of 1218796140

• Binary: 1001000101001010101101001101100₂
• Hexadecimal: 0x48A55A6C
• Base-36: K5N14C

Squares and roots of 1218796140

• 1218796140 squared (1218796140²) is 1485464030878899600
• 1218796140 cubed (1218796140³) is 1810477826944043639927544000
• The square root of 1218796140 is 34911.2609339737
• The cube root of 1218796140 is 1068.1781499447

Scales and comparisons

• 1,218,796,140 seconds is equal to 38 years, 39 weeks, 1 day, 10 hours, 29 minutes.
• To count from 1 to 1,218,796,140 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 1218796140 cubic inches would be around 89 feet tall.

Recreational maths with 1218796140

• 1218796140 backwards is 0416978121
• The number of decimal digits it has is: 10
• The sum of 1218796140's digits is 39
• More coming soon!