28439400

Names of 28439400

• Cardinal: 28439400 can be written as Twenty-eight million, four hundred thirty-nine thousand, four hundred.

Scientific notation

• Scientific notation: 2.84394 × 10⁷

Factors of 28439400

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 191

Divisors of 28439400

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 3 4 5 6 8 10 11 12 15 20 22 24 25 30 31 33 40 44 50 55 60 62 66 75 88 93 100 110 120 124 132 139 150 155 165 186 200 220 248 264 275 278 300 310 330 341 372 417 440 465 550 556 600 620 660 682 695 744 775 825 834 930 1023 1100 1112 1240 1320 1364 1390 1529 1550 1650 1668 1705 1860 2046 2085 2200 2325 2728 2780 3058 3100 3300 3336 3410 3475 3720 4092 4170 4309 4587 4650 5115 5560 6116 6200 6600 6820 6950 7645 8184 8340 8525 8618 9174 9300 10230 10425 12232 12927 13640 13900 15290 16680 17050 17236 18348 18600 20460 20850 21545 22935 25575 25854 27800 30580 34100 34472 36696 38225 40920 41700 43090 45870 47399 51150 51708 61160 64635 68200 76450 83400 86180 91740 94798 102300 103416 107725 114675 129270 142197 152900 172360 183480 189596 204600 215450 229350 236995 258540 284394 305800 323175 379192 430900 458700 473990 517080 568788 646350 710985 861800 917400 947980 1137576 1184975 1292700 1421970 1895960 2369950 2585400 2843940 3554925 4739900 5687880 7109850 9479800 14219700 28439400
• Sum of all divisors σ(n): 99993600
• Sum of proper divisors (its aliquot sum) s(n): 71554200
• 28439400 is an abundant number, because the sum of its proper divisors (71554200) is greater than itself. Its abundance is 43114800

Bases of 28439400

• Binary: 1101100011111001101101000₂
• Hexadecimal: 0x1B1F368
• Base-36: GXJZC

Squares and roots of 28439400

• 28439400 squared (28439400²) is 808799472360000
• 28439400 cubed (28439400³) is 23001771714234984000000
• The square root of 28439400 is 5332.8603956975
• The cube root of 28439400 is 305.2390851325

Scales and comparisons

• 28,439,400 seconds is equal to 47 weeks, 3 hours, 50 minutes.
• To count from 1 to 28,439,400 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 28439400 cubic inches would be around 25.4 feet tall.

Recreational maths with 28439400

• 28439400 backwards is 00493482
• 28439400 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 28439400's digits is 30
• More coming soon!