428031540

Names of 428031540

• Cardinal: 428031540 can be written as Four hundred twenty-eight million, thirty-one thousand, five hundred forty.

Scientific notation

• Scientific notation: 4.2803154 × 10⁸

Factors of 428031540

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 240

Divisors of 428031540

• Number of divisors d(n): 180
• Complete list of divisors:
  1 2 3 4 5 6 9 10 12 15 18 20 27 30 36 37 45 54 60 74 81 90 108 111 135 148 162 180 185 193 222 270 324 333 370 386 405 444 540 555 579 666 740 772 810 965 999 1110 1158 1332 1369 1620 1665 1737 1930 1998 2220 2316 2738 2895 2997 3330 3474 3860 3996 4107 4995 5211 5476 5790 5994 6660 6845 6948 7141 8214 8685 9990 10422 11580 11988 12321 13690 14282 14985 15633 16428 17370 19980 20535 20844 21423 24642 26055 27380 28564 29970 31266 34740 35705 36963 41070 42846 49284 52110 59940 61605 62532 64269 71410 73926 78165 82140 85692 104220 107115 110889 123210 128538 142820 147852 156330 184815 192807 214230 221778 246420 257076 264217 312660 321345 369630 385614 428460 443556 528434 554445 578421 642690 739260 771228 792651 964035 1056868 1108890 1156842 1285380 1321085 1585302 1928070 2217780 2313684 2377953 2642170 2892105 3170604 3856140 3963255 4755906 5284340 5784210 7133859 7926510 9511812 11568420 11889765 14267718 15853020 21401577 23779530 28535436 35669295 42803154 47559060 71338590 85606308 107007885 142677180 214015770 428031540
• Sum of all divisors σ(n): 1387172556
• Sum of proper divisors (its aliquot sum) s(n): 959141016
• 428031540 is an abundant number, because the sum of its proper divisors (959141016) is greater than itself. Its abundance is 531109476

Bases of 428031540

• Binary: 11001100000110011111000110100₂
• Hexadecimal: 0x19833E34
• Base-36: 72U790

Squares and roots of 428031540

• 428031540 squared (428031540²) is 183210999234771600
• 428031540 cubed (428031540³) is 78420086147398109496264000
• The square root of 428031540 is 20688.9231232561
• The cube root of 428031540 is 753.6307155113

Scales and comparisons

• 428,031,540 seconds is equal to 13 years, 31 weeks, 5 days, 1 hour, 39 minutes.
• To count from 1 to 428,031,540 would take you about twenty 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 428031540 cubic inches would be around 62.8 feet tall.

Recreational maths with 428031540

• 428031540 backwards is 045130824
• 428031540 is a Harshad number.
• The number of decimal digits it has is: 9
• The sum of 428031540's digits is 27
• More coming soon!