72157402228

Names of 72157402228

• Cardinal: 72157402228 can be written as Seventy-two billion, one hundred fifty-seven million, four hundred two thousand, two hundred twenty-eight.

Scientific notation

• Scientific notation: 7.2157402228 × 10¹⁰

Factors of 72157402228

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 6998

Divisors of 72157402228

• Number of divisors d(n): 48
• Complete list of divisors:
  1 2 4 19 38 76 241 482 647 964 1294 2588 4579 6089 9158 12178 12293 18316 24356 24586 49172 115691 155927 231382 311854 462764 623708 1467449 2934898 2962613 3939583 5869796 5925226 7879166 11850452 15758332 27881531 55763062 74852077 111526124 149704154 299408308 949439503 1898879006 3797758012 18039350557 36078701114 72157402228
• Sum of all divisors σ(n): 133701321600
• Sum of proper divisors (its aliquot sum) s(n): 61543919372
• 72157402228 is a deficient number, because the sum of its proper divisors (61543919372) is less than itself. Its deficiency is 10613482856

Bases of 72157402228

• Binary: 1000011001100111010101001010001110100₂
• Hexadecimal: 0x10CCEA9474
• Base-36: X5CNJW4

Squares and roots of 72157402228

• 72157402228 squared (72157402228²) is 5206690696293379363984
• 72157402228 cubed (72157402228³) is 375701274849226763460388304556352
• The square root of 72157402228 is 268621.2989098221
• The cube root of 72157402228 is 4163.1970121169

Scales and comparisons

• 72,157,402,228 seconds is equal to 2,294 years, 19 weeks, 6 days, 2 hours, 50 minutes, 28 seconds.
• To count from 1 to 72,157,402,228 would take you about four thousand, five hundred eighty-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 72157402228 cubic inches would be around 346.9 feet tall.

Recreational maths with 72157402228

• 72157402228 backwards is 82220475127
• The number of decimal digits it has is: 11
• The sum of 72157402228's digits is 40
• More coming soon!