7012518138

Names of 7012518138

• Cardinal: 7012518138 can be written as Seven billion, twelve million, five hundred eighteen thousand, one hundred thirty-eight.

Scientific notation

• Scientific notation: 7.012518138 × 10⁹

Factors of 7012518138

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 6335

Divisors of 7012518138

• Number of divisors d(n): 80
• Complete list of divisors:
  1 2 3 6 9 18 19 27 38 54 57 81 114 162 171 342 361 513 722 1026 1083 1539 2166 3078 3249 6311 6498 6859 9747 12622 13718 18933 19494 20577 29241 37866 41154 56799 58482 61731 113598 119909 123462 170397 185193 239818 340794 359727 370386 511191 555579 719454 1022382 1079181 1111158 2158362 2278271 3237543 4556542 6475086 6834813 9712629 13669626 19425258 20504439 41008878 43287149 61513317 86574298 123026634 129861447 184539951 259722894 369079902 389584341 779168682 1168753023 2337506046 3506259069 7012518138
• Sum of all divisors σ(n): 16588693440
• Sum of proper divisors (its aliquot sum) s(n): 9576175302
• 7012518138 is an abundant number, because the sum of its proper divisors (9576175302) is greater than itself. Its abundance is 2563657164

Bases of 7012518138

• Binary: 110100001111110101000100011111010₂
• Hexadecimal: 0x1A1FA88FA
• Base-36: 37Z2LMI

Squares and roots of 7012518138

• 7012518138 squared (7012518138²) is 49175410635778987044
• 7012518138 cubed (7012518138³) is 344843459026998258405317004072
• The square root of 7012518138 is 83740.7794207817
• The cube root of 7012518138 is 1914.0708054505

Scales and comparisons

• 7,012,518,138 seconds is equal to 222 years, 50 weeks, 5 days, 9 hours, 42 minutes, 18 seconds.
• To count from 1 to 7,012,518,138 would take you about four hundred forty-five 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 7012518138 cubic inches would be around 159.5 feet tall.

Recreational maths with 7012518138

• 7012518138 backwards is 8318152107
• The number of decimal digits it has is: 10
• The sum of 7012518138's digits is 36
• More coming soon!