30399040

Names of 30399040

• Cardinal: 30399040 can be written as Thirty million, three hundred ninety-nine thousand and forty.

Scientific notation

• Scientific notation: 3.039904 × 10⁷

Factors of 30399040

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 386

Divisors of 30399040

• Number of divisors d(n): 112
• Complete list of divisors:
  1 2 4 5 7 8 10 14 16 20 28 32 35 40 41 56 64 70 80 82 112 140 160 164 205 224 280 287 320 328 331 410 448 560 574 656 662 820 1120 1148 1312 1324 1435 1640 1655 2240 2296 2317 2624 2648 2870 3280 3310 4592 4634 5296 5740 6560 6620 9184 9268 10592 11480 11585 13120 13240 13571 18368 18536 21184 22960 23170 26480 27142 37072 45920 46340 52960 54284 67855 74144 91840 92680 94997 105920 108568 135710 148288 185360 189994 217136 271420 370720 379988 434272 474985 542840 741440 759976 868544 949970 1085680 1519952 1899940 2171360 3039904 3799880 4342720 6079808 7599760 15199520 30399040
• Sum of all divisors σ(n): 85002624
• Sum of proper divisors (its aliquot sum) s(n): 54603584
• 30399040 is an abundant number, because the sum of its proper divisors (54603584) is greater than itself. Its abundance is 24204544

Bases of 30399040

• Binary: 1110011111101101001000000₂
• Hexadecimal: 0x1CFDA40
• Base-36: I3K1S

Squares and roots of 30399040

• 30399040 squared (30399040²) is 924101632921600
• 30399040 cubed (30399040³) is 28091802503249035264000
• The square root of 30399040 is 5513.5324429987
• The cube root of 30399040 is 312.0948648633

Scales and comparisons

• 30,399,040 seconds is equal to 50 weeks, 1 day, 20 hours, 10 minutes, 40 seconds.
• To count from 1 to 30,399,040 would take you about twenty-three 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 30399040 cubic inches would be around 26 feet tall.

Recreational maths with 30399040

• 30399040 backwards is 04099303
• 30399040 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 30399040's digits is 28
• More coming soon!