4491431945

Names of 4491431945

• Cardinal: 4491431945 can be written as Four billion, four hundred ninety-one million, four hundred thirty-one thousand, nine hundred forty-five.

Scientific notation

• Scientific notation: 4.491431945 × 10⁹

Factors of 4491431945

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 775

Divisors of 4491431945

• Number of divisors d(n): 128
• Complete list of divisors:
  1 5 7 11 13 19 35 55 65 73 77 91 95 133 143 209 247 365 385 455 511 647 665 715 803 949 1001 1045 1235 1387 1463 1729 2555 2717 3235 4015 4529 4745 5005 5621 6643 6935 7117 7315 8411 8645 9709 10439 12293 13585 15257 18031 19019 22645 28105 33215 35585 42055 47231 48545 49819 52195 58877 61465 73073 76285 86051 90155 92521 95095 106799 126217 135223 159809 198341 236155 249095 294385 330617 365365 430255 462605 519541 533995 614003 631085 647647 676115 799045 897389 946561 991705 1118663 1388387 1653085 1757899 2597705 3070015 3238235 3636787 4298021 4486945 4732805 5593315 6281723 6754033 6941935 8789495 9871279 11666057 12305293 18183935 21490105 31408615 33770165 47278231 49356395 58330285 61526465 69098953 81662399 128326627 236391155 345494765 408311995 641633135 898286389 4491431945
• Sum of all divisors σ(n): 7733698560
• Sum of proper divisors (its aliquot sum) s(n): 3242266615
• 4491431945 is a deficient number, because the sum of its proper divisors (3242266615) is less than itself. Its deficiency is 1249165330

Bases of 4491431945

• Binary: 100001011101101011101000000001001₂
• Hexadecimal: 0x10BB5D009
• Base-36: 22A2Z2H

Squares and roots of 4491431945

• 4491431945 squared (4491431945²) is 20172960916566483025
• 4491431945 cubed (4491431945³) is 90605481085903181574785233625
• The square root of 4491431945 is 67018.1463858855
• The cube root of 4491431945 is 1649.9151404169

Scales and comparisons

• 4,491,431,945 seconds is equal to 142 years, 42 weeks, 2 days, 3 hours, 59 minutes, 5 seconds.
• To count from 1 to 4,491,431,945 would take you about two hundred eighty-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 4491431945 cubic inches would be around 137.5 feet tall.

Recreational maths with 4491431945

• 4491431945 backwards is 5491341944
• The number of decimal digits it has is: 10
• The sum of 4491431945's digits is 44
• More coming soon!