1338218506985

Names of 1338218506985

• Cardinal: 1338218506985 can be written as One trillion, three hundred thirty-eight billion, two hundred eighteen million, five hundred six thousand, nine hundred eighty-five.

Scientific notation

• Scientific notation: 1.338218506985 × 10¹²

Factors of 1338218506985

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 815

Divisors of 1338218506985

• Number of divisors d(n): 72
• Complete list of divisors:
  1 5 17 31 85 155 239 289 523 527 1195 1445 2615 2635 4063 7409 8891 8959 16213 20315 37045 44455 44795 57121 69071 81065 124997 125953 151147 275621 285605 345355 624985 629765 755735 971057 1378105 1770751 2124949 2141201 3874907 4685557 4855285 8853755 10624745 10706005 16507969 19374535 23427785 29874283 30102767 36124133 65873419 82539845 149371415 150513835 180620665 329367095 507862811 511747039 926102773 1119848123 2539314055 2558735195 4630513865 5599240615 8633667787 15743747141 43168338935 78718735705 267643701397 1338218506985
• Sum of all divisors σ(n): 1771689474816
• Sum of proper divisors (its aliquot sum) s(n): 433470967831
• 1338218506985 is a deficient number, because the sum of its proper divisors (433470967831) is less than itself. Its deficiency is 904747539154

Bases of 1338218506985

• Binary: 10011011110010100000010011110101011101001₂
• Hexadecimal: 0x1379409EAE9
• Base-36: H2ROQWH5

Squares and roots of 1338218506985

• 1338218506985 squared (1338218506985²) is 1790828772437162493790225
• 1338218506985 cubed (1338218506985³) is 2396520206116639912169794233287221625
• The square root of 1338218506985 is 1156813.9465726543
• The cube root of 1338218506985 is 11019.8498529311

Scales and comparisons

• 1,338,218,506,985 seconds is equal to 42,551 years, 10 weeks, 6 days, 3 hours, 3 minutes, 5 seconds.
• To count from 1 to 1,338,218,506,985 would take you about one hundred six thousand, three hundred seventy-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 1338218506985 cubic inches would be around 918.3 feet tall.

Recreational maths with 1338218506985

• 1338218506985 backwards is 5896058128331
• The number of decimal digits it has is: 13
• The sum of 1338218506985's digits is 59
• More coming soon!