30215430

Names of 30215430

• Cardinal: 30215430 can be written as Thirty million, two hundred fifteen thousand, four hundred thirty.

Scientific notation

• Scientific notation: 3.021543 × 10⁷

Factors of 30215430

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 90

Divisors of 30215430

• Number of divisors d(n): 120
• Complete list of divisors:
  1 2 3 5 6 7 9 10 14 15 18 21 27 30 35 42 45 54 63 70 73 81 90 105 126 135 146 162 189 210 219 270 315 365 378 405 438 511 567 630 657 730 810 945 1022 1095 1134 1314 1533 1890 1971 2190 2555 2835 3066 3285 3942 4599 5110 5329 5670 5913 6570 7665 9198 9855 10658 11826 13797 15330 15987 19710 22995 26645 27594 29565 31974 37303 41391 45990 47961 53290 59130 68985 74606 79935 82782 95922 111909 137970 143883 159870 186515 206955 223818 239805 287766 335727 373030 413910 431649 479610 559545 671454 719415 863298 1007181 1119090 1438830 1678635 2014362 2158245 3021543 3357270 4316490 5035905 6043086 10071810 15107715 30215430
• Sum of all divisors σ(n): 94141872
• Sum of proper divisors (its aliquot sum) s(n): 63926442
• 30215430 is an abundant number, because the sum of its proper divisors (63926442) is greater than itself. Its abundance is 33711012

Bases of 30215430

• Binary: 1110011010000110100000110₂
• Hexadecimal: 0x1CD0D06
• Base-36: HZMDI

Squares and roots of 30215430

• 30215430 squared (30215430²) is 912972210084900
• 30215430 cubed (30215430³) is 27585847905765590007000
• The square root of 30215430 is 5496.8563743287
• The cube root of 30215430 is 311.4652452191

Scales and comparisons

• 30,215,430 seconds is equal to 49 weeks, 6 days, 17 hours, 10 minutes, 30 seconds.
• To count from 1 to 30,215,430 would take you about twenty-two 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 30215430 cubic inches would be around 26 feet tall.

Recreational maths with 30215430

• 30215430 backwards is 03451203
• 30215430 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 30215430's digits is 18
• More coming soon!