28928900

Names of 28928900

• Cardinal: 28928900 can be written as Twenty-eight million, nine hundred twenty-eight thousand, nine hundred.

Scientific notation

• Scientific notation: 2.89289 × 10⁷

Factors of 28928900

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 55

Divisors of 28928900

• Number of divisors d(n): 216
• Complete list of divisors:
  1 2 4 5 7 10 11 13 14 17 20 22 25 26 28 34 35 44 50 52 55 65 68 70 77 85 91 100 110 119 130 140 143 154 170 175 182 187 220 221 238 260 275 286 289 308 325 340 350 364 374 385 425 442 455 476 550 572 578 595 650 700 715 748 770 850 884 910 935 1001 1100 1105 1156 1190 1300 1309 1430 1445 1540 1547 1700 1820 1870 1925 2002 2023 2210 2275 2380 2431 2618 2860 2890 2975 3094 3179 3575 3740 3757 3850 4004 4046 4420 4550 4675 4862 5005 5236 5525 5780 5950 6188 6358 6545 7150 7225 7514 7700 7735 8092 9100 9350 9724 10010 10115 11050 11900 12155 12716 13090 14300 14450 15028 15470 15895 17017 18700 18785 20020 20230 22100 22253 24310 25025 26180 26299 28900 30940 31790 32725 34034 37570 38675 40460 41327 44506 48620 50050 50575 52598 60775 63580 65450 68068 75140 77350 79475 82654 85085 89012 93925 100100 101150 105196 111265 121550 130900 131495 154700 158950 165308 170170 187850 202300 206635 222530 243100 262990 289289 317900 340340 375700 413270 425425 445060 525980 556325 578578 657475 826540 850850 1033175 1112650 1157156 1314950 1446445 1701700 2066350 2225300 2629900 2892890 4132700 5785780 7232225 14464450 28928900
• Sum of all divisors σ(n): 89535936
• Sum of proper divisors (its aliquot sum) s(n): 60607036
• 28928900 is an abundant number, because the sum of its proper divisors (60607036) is greater than itself. Its abundance is 31678136

Bases of 28928900

• Binary: 1101110010110101110000100₂
• Hexadecimal: 0x1B96B84
• Base-36: H81OK

Squares and roots of 28928900

• 28928900 squared (28928900²) is 836881255210000
• 28928900 cubed (28928900³) is 24210054143844569000000
• The square root of 28928900 is 5378.5592866491
• The cube root of 28928900 is 306.9803946497

Scales and comparisons

• 28,928,900 seconds is equal to 47 weeks, 5 days, 19 hours, 48 minutes, 20 seconds.
• To count from 1 to 28,928,900 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 28928900 cubic inches would be around 25.6 feet tall.

Recreational maths with 28928900

• 28928900 backwards is 00982982
• The number of decimal digits it has is: 8
• The sum of 28928900's digits is 38
• More coming soon!