38891147139

Names of 38891147139

• Cardinal: 38891147139 can be written as Thirty-eight billion, eight hundred ninety-one million, one hundred forty-seven thousand, one hundred thirty-nine.

Scientific notation

• Scientific notation: 3.8891147139 × 10¹⁰

Factors of 38891147139

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 49878

Divisors of 38891147139

• Number of divisors d(n): 72
• Complete list of divisors:
  1 3 9 13 19 27 39 57 81 117 169 171 243 247 351 507 513 741 1053 1521 1539 2223 3159 3211 4563 4617 6669 9633 13689 20007 28899 41067 49843 60021 86697 149529 260091 448587 647959 780273 947017 1345761 1943877 2841051 4037283 5831631 8423467 8523153 12111849 12311221 17494893 25270401 25569459 36933663 52484679 75811203 76708377 110800989 157454037 160045873 227433609 230125131 332402967 480137619 682300827 997208901 1440412857 2046902481 2991626703 4321238571 12963715713 38891147139
• Sum of all divisors σ(n): 66404170560
• Sum of proper divisors (its aliquot sum) s(n): 27513023421
• 38891147139 is a deficient number, because the sum of its proper divisors (27513023421) is less than itself. Its deficiency is 11378123718

Bases of 38891147139

• Binary: 100100001110000101111100111110000011₂
• Hexadecimal: 0x90E17CF83
• Base-36: HV6S96R

Squares and roots of 38891147139

• 38891147139 squared (38891147139²) is 1512521325787347885321
• 38891147139 cubed (38891147139³) is 58823689432071101632599509246619
• The square root of 38891147139 is 197208.3850626033
• The cube root of 38891147139 is 3388.0534341283

Scales and comparisons

• 38,891,147,139 seconds is equal to 1,236 years, 32 weeks, 1 day, 25 minutes, 39 seconds.
• To count from 1 to 38,891,147,139 would take you about two thousand, four hundred seventy-three 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 38891147139 cubic inches would be around 282.3 feet tall.

Recreational maths with 38891147139

• 38891147139 backwards is 93174119883
• The number of decimal digits it has is: 11
• The sum of 38891147139's digits is 54
• More coming soon!