1218148875

Names of 1218148875

• Cardinal: 1218148875 can be written as One billion, two hundred eighteen million, one hundred forty-eight thousand, eight hundred seventy-five.

Scientific notation

• Scientific notation: 1.218148875 × 10⁹

Factors of 1218148875

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 3920

Divisors of 1218148875

• Number of divisors d(n): 80
• Complete list of divisors:
  1 3 5 9 15 25 27 31 45 75 81 93 125 135 155 225 279 375 405 465 675 775 837 1125 1395 2025 2325 2511 3375 3875 3881 4185 6975 10125 11625 11643 12555 19405 20925 34875 34929 58215 62775 97025 104625 104787 120311 174645 291075 313875 314361 360933 485125 523935 601555 873225 1082799 1455375 1571805 1804665 2619675 3007775 3248397 4366125 5413995 7859025 9023325 9745191 13098375 15038875 16241985 27069975 39295125 45116625 48725955 81209925 135349875 243629775 406049625 1218148875
• Sum of all divisors σ(n): 2344852224
• Sum of proper divisors (its aliquot sum) s(n): 1126703349
• 1218148875 is a deficient number, because the sum of its proper divisors (1126703349) is less than itself. Its deficiency is 91445526

Bases of 1218148875

• Binary: 1001000100110110111101000001011₂
• Hexadecimal: 0x489B7A0B
• Base-36: K595OR

Squares and roots of 1218148875

• 1218148875 squared (1218148875²) is 1483886681663765625
• 1218148875 cubed (1218148875³) is 1807594891896199224357421875
• The square root of 1218148875 is 34901.9895564707
• The cube root of 1218148875 is 1067.9890243159

Scales and comparisons

• 1,218,148,875 seconds is equal to 38 years, 38 weeks, 22 hours, 41 minutes, 15 seconds.
• To count from 1 to 1,218,148,875 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 1218148875 cubic inches would be around 89 feet tall.

Recreational maths with 1218148875

• 1218148875 backwards is 5788418121
• 1218148875 is a Harshad number.
• The number of decimal digits it has is: 10
• The sum of 1218148875's digits is 45
• More coming soon!