28417920

Names of 28417920

• Cardinal: 28417920 can be written as Twenty-eight million, four hundred seventeen thousand, nine hundred twenty.

Scientific notation

• Scientific notation: 2.841792 × 10⁷

Factors of 28417920

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 70

Divisors of 28417920

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 15 16 19 20 24 30 32 38 40 41 48 57 60 64 76 80 82 95 96 114 120 123 128 152 160 164 190 192 205 228 240 246 285 304 320 328 361 380 384 410 456 480 492 570 608 615 640 656 722 760 779 820 912 960 984 1083 1140 1216 1230 1312 1444 1520 1558 1640 1805 1824 1920 1968 2166 2280 2337 2432 2460 2624 2888 3040 3116 3280 3610 3648 3895 3936 4332 4560 4674 4920 5248 5415 5776 6080 6232 6560 7220 7296 7790 7872 8664 9120 9348 9840 10830 11552 11685 12160 12464 13120 14440 14801 15580 15744 17328 18240 18696 19680 21660 23104 23370 24928 26240 28880 29602 31160 34656 36480 37392 39360 43320 44403 46208 46740 49856 57760 59204 62320 69312 74005 74784 78720 86640 88806 93480 99712 115520 118408 124640 138624 148010 149568 173280 177612 186960 222015 231040 236816 249280 296020 299136 346560 355224 373920 444030 473632 498560 592040 693120 710448 747840 888060 947264 1184080 1420896 1495680 1776120 1894528 2368160 2841792 3552240 4736320 5683584 7104480 9472640 14208960 28417920
• Sum of all divisors σ(n): 97932240
• Sum of proper divisors (its aliquot sum) s(n): 69514320
• 28417920 is an abundant number, because the sum of its proper divisors (69514320) is greater than itself. Its abundance is 41096400

Bases of 28417920

• Binary: 1101100011001111110000000₂
• Hexadecimal: 0x1B19F80
• Base-36: GX3EO

Squares and roots of 28417920

• 28417920 squared (28417920²) is 807578177126400
• 28417920 cubed (28417920³) is 22949692031323865088000
• The square root of 28417920 is 5330.8460866921
• The cube root of 28417920 is 305.1622177473

Scales and comparisons

• 28,417,920 seconds is equal to 46 weeks, 6 days, 21 hours, 52 minutes.
• To count from 1 to 28,417,920 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 28417920 cubic inches would be around 25.4 feet tall.

Recreational maths with 28417920

• 28417920 backwards is 02971482
• The number of decimal digits it has is: 8
• The sum of 28417920's digits is 33
• More coming soon!