40138834868

Names of 40138834868

• Cardinal: 40138834868 can be written as Forty billion, one hundred thirty-eight million, eight hundred thirty-four thousand, eight hundred sixty-eight.

Scientific notation

• Scientific notation: 4.0138834868 × 10¹⁰

Factors of 40138834868

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 2840

Divisors of 40138834868

• Number of divisors d(n): 72
• Complete list of divisors:
  1 2 4 11 22 43 44 86 121 172 242 473 484 946 1297 1487 1892 2594 2974 5188 5203 5948 10406 14267 16357 20812 28534 32714 55771 57068 63941 65428 111542 127882 156937 179927 223084 255764 313874 359854 613481 627748 703351 719708 1226962 1406702 1928639 2453924 2813404 3857278 6748291 7714556 7736861 13496582 15473722 21215029 26993164 30947444 42430058 82931477 84860116 165862954 233365319 331725908 466730638 912246247 933461276 1824492494 3648984988 10034708717 20069417434 40138834868
• Sum of all divisors σ(n): 79118852736
• Sum of proper divisors (its aliquot sum) s(n): 38980017868
• 40138834868 is a deficient number, because the sum of its proper divisors (38980017868) is less than itself. Its deficiency is 1158817000

Bases of 40138834868

• Binary: 100101011000011101100000001110110100₂
• Hexadecimal: 0x9587603B4
• Base-36: IFTMJ78

Squares and roots of 40138834868

• 40138834868 squared (40138834868²) is 1611126064560572577424
• 40138834868 cubed (40138834868³) is 64668723056927529668751080820032
• The square root of 40138834868 is 200346.7865177777
• The cube root of 40138834868 is 3423.9040624641

Scales and comparisons

• 40,138,834,868 seconds is equal to 1,276 years, 15 weeks, 20 hours, 21 minutes, 8 seconds.
• To count from 1 to 40,138,834,868 would take you about two thousand, five hundred fifty-two 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 40138834868 cubic inches would be around 285.3 feet tall.

Recreational maths with 40138834868

• 40138834868 backwards is 86843883104
• The number of decimal digits it has is: 11
• The sum of 40138834868's digits is 53
• More coming soon!