30749220

Names of 30749220

• Cardinal: 30749220 can be written as Thirty million, seven hundred forty-nine thousand, two hundred twenty.

Scientific notation

• Scientific notation: 3.074922 × 10⁷

Factors of 30749220

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 66

Divisors of 30749220

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 3 4 5 6 9 10 12 15 18 19 20 27 30 36 37 38 45 54 57 60 74 76 81 90 95 108 111 114 135 148 162 171 180 185 190 222 228 243 270 285 324 333 342 370 380 405 444 486 513 540 555 570 666 684 703 729 740 810 855 972 999 1026 1110 1140 1215 1332 1406 1458 1539 1620 1665 1710 1998 2052 2109 2187 2220 2430 2565 2812 2916 2997 3078 3330 3420 3515 3645 3996 4218 4374 4617 4860 4995 5130 5994 6156 6327 6660 7030 7290 7695 8436 8748 8991 9234 9990 10260 10545 10935 11988 12654 13851 14060 14580 14985 15390 17982 18468 18981 19980 21090 21870 23085 25308 26973 27702 29970 30780 31635 35964 37962 41553 42180 43740 44955 46170 53946 55404 56943 59940 63270 69255 75924 80919 83106 89910 92340 94905 107892 113886 126540 134865 138510 161838 166212 170829 179820 189810 207765 227772 269730 277020 284715 323676 341658 379620 404595 415530 512487 539460 569430 683316 809190 831060 854145 1024974 1138860 1537461 1618380 1708290 2049948 2562435 3074922 3416580 5124870 6149844 7687305 10249740 15374610 30749220
• Sum of all divisors σ(n): 104697600
• Sum of proper divisors (its aliquot sum) s(n): 73948380
• 30749220 is an abundant number, because the sum of its proper divisors (73948380) is greater than itself. Its abundance is 43199160

Bases of 30749220

• Binary: 1110101010011001000100100₂
• Hexadecimal: 0x1D53224
• Base-36: IB290

Squares and roots of 30749220

• 30749220 squared (30749220²) is 945514530608400
• 30749220 cubed (30749220³) is 29073834314874425448000
• The square root of 30749220 is 5545.1979225273
• The cube root of 30749220 is 313.2886788131

Scales and comparisons

• 30,749,220 seconds is equal to 50 weeks, 5 days, 21 hours, 27 minutes.
• To count from 1 to 30,749,220 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 30749220 cubic inches would be around 26.1 feet tall.

Recreational maths with 30749220

• 30749220 backwards is 02294703
• 30749220 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 30749220's digits is 27
• More coming soon!