20894720

Names of 20894720

• Cardinal: 20894720 can be written as Twenty million, eight hundred ninety-four thousand, seven hundred twenty.

Scientific notation

• Scientific notation: 2.089472 × 10⁷

Factors of 20894720

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 78

Divisors of 20894720

• Number of divisors d(n): 176
• Complete list of divisors:
  1 2 4 5 7 8 10 11 14 16 20 22 28 32 35 40 44 53 55 56 64 70 77 80 88 106 110 112 128 140 154 160 176 212 220 224 256 265 280 308 320 352 371 385 424 440 448 512 530 560 583 616 640 704 742 770 848 880 896 1024 1060 1120 1166 1232 1280 1408 1484 1540 1696 1760 1792 1855 2120 2240 2332 2464 2560 2816 2915 2968 3080 3392 3520 3584 3710 4081 4240 4480 4664 4928 5120 5632 5830 5936 6160 6784 7040 7168 7420 8162 8480 8960 9328 9856 11264 11660 11872 12320 13568 14080 14840 16324 16960 17920 18656 19712 20405 23320 23744 24640 27136 28160 29680 32648 33920 35840 37312 39424 40810 46640 47488 49280 54272 56320 59360 65296 67840 74624 78848 81620 93280 94976 98560 118720 130592 135680 149248 163240 186560 189952 197120 237440 261184 271360 298496 326480 373120 379904 394240 474880 522368 596992 652960 746240 949760 1044736 1305920 1492480 1899520 2089472 2611840 2984960 4178944 5223680 10447360 20894720
• Sum of all divisors σ(n): 63669888
• Sum of proper divisors (its aliquot sum) s(n): 42775168
• 20894720 is an abundant number, because the sum of its proper divisors (42775168) is greater than itself. Its abundance is 21880448

Bases of 20894720

• Binary: 1001111101101010000000000₂
• Hexadecimal: 0x13ED400
• Base-36: CFUGW

Squares and roots of 20894720

• 20894720 squared (20894720²) is 436589323878400
• 20894720 cubed (20894720³) is 9122411677428482048000
• The square root of 20894720 is 4571.0742719847
• The cube root of 20894720 is 275.4305981399

Scales and comparisons

• 20,894,720 seconds is equal to 34 weeks, 3 days, 20 hours, 5 minutes, 20 seconds.
• To count from 1 to 20,894,720 would take you about fifty-one 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 20894720 cubic inches would be around 23 feet tall.

Recreational maths with 20894720

• 20894720 backwards is 02749802
• 20894720 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 20894720's digits is 32
• More coming soon!