28974540

Names of 28974540

• Cardinal: 28974540 can be written as Twenty-eight million, nine hundred seventy-four thousand, five hundred forty.

Scientific notation

• Scientific notation: 2.897454 × 10⁷

Factors of 28974540

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 629

Divisors of 28974540

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 3 4 5 6 7 10 12 14 15 20 21 28 30 35 42 60 70 84 105 140 149 210 298 420 447 463 596 745 894 926 1043 1389 1490 1788 1852 2086 2235 2315 2778 2980 3129 3241 4172 4470 4630 5215 5556 6258 6482 6945 8940 9260 9723 10430 12516 12964 13890 15645 16205 19446 20860 27780 31290 32410 38892 48615 62580 64820 68987 97230 137974 194460 206961 275948 344935 413922 482909 689870 827844 965818 1034805 1379740 1448727 1931636 2069610 2414545 2897454 4139220 4829090 5794908 7243635 9658180 14487270 28974540
• Sum of all divisors σ(n): 93542400
• Sum of proper divisors (its aliquot sum) s(n): 64567860
• 28974540 is an abundant number, because the sum of its proper divisors (64567860) is greater than itself. Its abundance is 35593320

Bases of 28974540

• Binary: 1101110100001110111001100₂
• Hexadecimal: 0x1BA1DCC
• Base-36: H90WC

Squares and roots of 28974540

• 28974540 squared (28974540²) is 839523968211600
• 28974540 cubed (28974540³) is 24324820797905732664000
• The square root of 28974540 is 5382.8003864161
• The cube root of 28974540 is 307.1417468347

Scales and comparisons

• 28,974,540 seconds is equal to 47 weeks, 6 days, 8 hours, 29 minutes.
• To count from 1 to 28,974,540 would take you about nineteen 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 28974540 cubic inches would be around 25.6 feet tall.

Recreational maths with 28974540

• 28974540 backwards is 04547982
• The number of decimal digits it has is: 8
• The sum of 28974540's digits is 39
• More coming soon!