30721390228

Names of 30721390228

• Cardinal: 30721390228 can be written as Thirty billion, seven hundred twenty-one million, three hundred ninety thousand, two hundred twenty-eight.

Scientific notation

• Scientific notation: 3.0721390228 × 10¹⁰

Factors of 30721390228

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 3672

Divisors of 30721390228

• Number of divisors d(n): 72
• Complete list of divisors:
  1 2 4 31 37 61 62 74 122 124 148 244 961 1147 1891 1922 2257 2294 3541 3782 3844 4514 4588 7082 7564 9028 14164 35557 58621 69967 71114 109771 117242 131017 139934 142228 216001 219542 234484 262034 279868 432002 439084 524068 864004 2168977 3402901 4061527 4337954 6696031 6805802 7992037 8123054 8675908 13392062 13611604 15984074 16246108 26784124 31968148 125907337 207576961 247753147 251814674 415153922 495506294 503629348 830307844 991012588 7680347557 15360695114 30721390228
• Sum of all divisors σ(n): 58005761352
• Sum of proper divisors (its aliquot sum) s(n): 27284371124
• 30721390228 is a deficient number, because the sum of its proper divisors (27284371124) is less than itself. Its deficiency is 3437019104

Bases of 30721390228

• Binary: 11100100111001000110011011010010100₂
• Hexadecimal: 0x727233694
• Base-36: E42Q0ES

Squares and roots of 30721390228

• 30721390228 squared (30721390228²) is 943803817541053891984
• 30721390228 cubed (30721390228³) is 28994965377354828026018625132352
• The square root of 30721390228 is 175275.1842903039
• The cube root of 30721390228 is 3131.9413566547

Scales and comparisons

• 30,721,390,228 seconds is equal to 976 years, 43 weeks, 6 days, 15 hours, 30 minutes, 28 seconds.
• To count from 1 to 30,721,390,228 would take you about one thousand, nine hundred fifty-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 30721390228 cubic inches would be around 261 feet tall.

Recreational maths with 30721390228

• 30721390228 backwards is 82209312703
• 30721390228 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 30721390228's digits is 37
• More coming soon!