30807819990

Names of 30807819990

• Cardinal: 30807819990 can be written as Thirty billion, eight hundred seven million, eight hundred nineteen thousand, nine hundred ninety.

Scientific notation

• Scientific notation: 3.080781999 × 10¹⁰

Factors of 30807819990

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 139733

Divisors of 30807819990

• Number of divisors d(n): 128
• Complete list of divisors:
  1 2 3 5 6 9 10 15 18 19 27 30 38 43 45 54 57 86 90 95 114 129 135 171 190 215 258 270 285 342 387 430 513 570 645 774 817 855 1026 1161 1290 1634 1710 1935 2322 2451 2565 3870 4085 4902 5130 5805 7353 8170 11610 12255 14706 22059 24510 36765 44118 73530 110295 139661 220590 279322 418983 698305 837966 1256949 1396610 2094915 2513898 2653559 3770847 4189830 5307118 6005423 6284745 7541694 7960677 12010846 12569490 13267795 15921354 18016269 18854235 23882031 26535590 30027115 36032538 37708470 39803385 47764062 54048807 60054230 71646093 79606770 90081345 108097614 114103037 119410155 143292186 162146421 180162690 228206074 238820310 270244035 324292842 342309111 358230465 540488070 570515185 684618222 716460930 810732105 1026927333 1141030370 1621464210 1711545555 2053854666 3080781999 3423091110 5134636665 6161563998 10269273330 15403909995 30807819990
• Sum of all divisors σ(n): 88489843200
• Sum of proper divisors (its aliquot sum) s(n): 57682023210
• 30807819990 is an abundant number, because the sum of its proper divisors (57682023210) is greater than itself. Its abundance is 26874203220

Bases of 30807819990

• Binary: 11100101100010010100000011011010110₂
• Hexadecimal: 0x72C4A06D6
• Base-36: E5I6I1I

Squares and roots of 30807819990

• 30807819990 squared (30807819990²) is 949121772536243600100
• 30807819990 cubed (30807819990³) is 29240372716886318582670345999000
• The square root of 30807819990 is 175521.5655980769
• The cube root of 30807819990 is 3134.8756801505

Scales and comparisons

• 30,807,819,990 seconds is equal to 979 years, 30 weeks, 5 days, 23 hours, 46 minutes, 30 seconds.
• To count from 1 to 30,807,819,990 would take you about one thousand, nine hundred fifty-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 30807819990 cubic inches would be around 261.2 feet tall.

Recreational maths with 30807819990

• 30807819990 backwards is 09991870803
• 30807819990 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 30807819990's digits is 54
• More coming soon!