28439040

Names of 28439040

• Cardinal: 28439040 can be written as Twenty-eight million, four hundred thirty-nine thousand and forty.

Scientific notation

• Scientific notation: 2.843904 × 10⁷

Factors of 28439040

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 40

Divisors of 28439040

• Number of divisors d(n): 240
• Complete list of divisors:
  1 2 3 4 5 6 7 8 10 12 14 15 16 20 21 23 24 28 30 32 35 40 42 46 48 56 60 64 69 70 80 84 92 96 105 112 115 120 128 138 140 160 161 168 184 192 210 224 230 240 256 276 280 320 322 336 345 368 384 420 448 460 480 483 512 529 552 560 640 644 672 690 736 768 805 840 896 920 960 966 1058 1104 1120 1280 1288 1344 1380 1472 1536 1587 1610 1680 1792 1840 1920 1932 2116 2208 2240 2415 2560 2576 2645 2688 2760 2944 3174 3220 3360 3584 3680 3703 3840 3864 4232 4416 4480 4830 5152 5290 5376 5520 5888 6348 6440 6720 7360 7406 7680 7728 7935 8464 8832 8960 9660 10304 10580 10752 11040 11109 11776 12696 12880 13440 14720 14812 15456 15870 16928 17664 17920 18515 19320 20608 21160 22080 22218 25392 25760 26880 29440 29624 30912 31740 33856 35328 37030 38640 41216 42320 44160 44436 50784 51520 53760 55545 58880 59248 61824 63480 67712 74060 77280 82432 84640 88320 88872 101568 103040 111090 118496 123648 126960 135424 148120 154560 169280 176640 177744 203136 206080 222180 236992 247296 253920 270848 296240 309120 338560 355488 406272 412160 444360 473984 507840 592480 618240 677120 710976 812544 888720 947968 1015680 1184960 1236480 1354240 1421952 1777440 1895936 2031360 2369920 2843904 3554880 4062720 4739840 5687808 7109760 9479680 14219520 28439040
• Sum of all divisors σ(n): 108618048
• Sum of proper divisors (its aliquot sum) s(n): 80179008
• 28439040 is an abundant number, because the sum of its proper divisors (80179008) is greater than itself. Its abundance is 51739968

Bases of 28439040

• Binary: 1101100011111001000000000₂
• Hexadecimal: 0x1B1F200
• Base-36: GXJPC

Squares and roots of 28439040

• 28439040 squared (28439040²) is 808778996121600
• 28439040 cubed (28439040³) is 23000898221862027264000
• The square root of 28439040 is 5332.8266425977
• The cube root of 28439040 is 305.2377971717

Scales and comparisons

• 28,439,040 seconds is equal to 47 weeks, 3 hours, 44 minutes.
• To count from 1 to 28,439,040 would take you about eighteen 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 28439040 cubic inches would be around 25.4 feet tall.

Recreational maths with 28439040

• 28439040 backwards is 04093482
• 28439040 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 28439040's digits is 30
• More coming soon!