30870980

Names of 30870980

• Cardinal: 30870980 can be written as Thirty million, eight hundred seventy thousand, nine hundred eighty.

Scientific notation

• Scientific notation: 3.087098 × 10⁷

Factors of 30870980

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 140

Divisors of 30870980

• Number of divisors d(n): 108
• Complete list of divisors:
  1 2 4 5 7 10 14 17 20 28 34 35 49 68 70 85 98 109 119 140 170 196 218 238 245 289 340 436 476 490 545 578 595 763 833 980 1090 1156 1190 1445 1526 1666 1853 2023 2180 2380 2890 3052 3332 3706 3815 4046 4165 5341 5780 7412 7630 8092 8330 9265 10115 10682 12971 14161 15260 16660 18530 20230 21364 25942 26705 28322 31501 37060 40460 51884 53410 56644 63002 64855 70805 90797 106820 126004 129710 141610 157505 181594 220507 259420 283220 315010 363188 441014 453985 630020 882028 907970 1102535 1543549 1815940 2205070 3087098 4410140 6174196 7717745 15435490 30870980
• Sum of all divisors σ(n): 80845380
• Sum of proper divisors (its aliquot sum) s(n): 49974400
• 30870980 is an abundant number, because the sum of its proper divisors (49974400) is greater than itself. Its abundance is 19103420

Bases of 30870980

• Binary: 1110101110000110111000100₂
• Hexadecimal: 0x1D70DC4
• Base-36: IDO78

Squares and roots of 30870980

• 30870980 squared (30870980²) is 953017406160400
• 30870980 cubed (30870980³) is 29420581285229585192000
• The square root of 30870980 is 5556.1659442461
• The cube root of 30870980 is 313.7016517829

Scales and comparisons

• 30,870,980 seconds is equal to 51 weeks, 7 hours, 16 minutes, 20 seconds.
• To count from 1 to 30,870,980 would take you about twenty-four weeks!

  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 30870980 cubic inches would be around 26.1 feet tall.

Recreational maths with 30870980

• 30870980 backwards is 08907803
• 30870980 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 30870980's digits is 35
• More coming soon!