40720518972

Names of 40720518972

• Cardinal: 40720518972 can be written as Forty billion, seven hundred twenty million, five hundred eighteen thousand, nine hundred seventy-two.

Scientific notation

• Scientific notation: 4.0720518972 × 10¹⁰

Factors of 40720518972

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 47374

Divisors of 40720518972

• Number of divisors d(n): 72
• Complete list of divisors:
  1 2 3 4 6 7 9 12 14 18 21 28 36 42 63 84 126 252 3701 7402 11103 14804 22206 25907 33309 43661 44412 51814 66618 77721 87322 103628 130983 133236 155442 174644 233163 261966 305627 310884 392949 466326 523932 611254 785898 916881 932652 1222508 1571796 1833762 2750643 3667524 5501286 11002572 161589361 323178722 484768083 646357444 969536166 1131125527 1454304249 1939072332 2262251054 2908608498 3393376581 4524502108 5817216996 6786753162 10180129743 13573506324 20360259486 40720518972
• Sum of all divisors σ(n): 117671535072
• Sum of proper divisors (its aliquot sum) s(n): 76951016100
• 40720518972 is an abundant number, because the sum of its proper divisors (76951016100) is greater than itself. Its abundance is 36230497128

Bases of 40720518972

• Binary: 100101111011001000011100111100111100₂
• Hexadecimal: 0x97B21CF3C
• Base-36: IPFY1J0

Squares and roots of 40720518972

• 40720518972 squared (40720518972²) is 1658160665349011936784
• 40720518972 cubed (40720518972³) is 67521162831968583573267336666048
• The square root of 40720518972 is 201793.2579944137
• The cube root of 40720518972 is 3440.3643186125

Scales and comparisons

• 40,720,518,972 seconds is equal to 1,294 years, 40 weeks, 6 days, 7 hours, 16 minutes, 12 seconds.
• To count from 1 to 40,720,518,972 would take you about two thousand, five hundred eighty-nine 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 40720518972 cubic inches would be around 286.7 feet tall.

Recreational maths with 40720518972

• 40720518972 backwards is 27981502704
• The number of decimal digits it has is: 11
• The sum of 40720518972's digits is 45
• More coming soon!