20009640

Names of 20009640

• Cardinal: 20009640 can be written as Twenty million, nine thousand, six hundred forty.

Scientific notation

• Scientific notation: 2.000964 × 10⁷

Factors of 20009640

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 141

Divisors of 20009640

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 3 4 5 6 7 8 10 12 14 15 20 21 24 28 30 35 40 41 42 49 56 60 70 82 83 84 98 105 120 123 140 147 164 166 168 196 205 210 245 246 249 280 287 294 328 332 392 410 415 420 490 492 498 574 581 588 615 664 735 820 830 840 861 980 984 996 1148 1162 1176 1230 1245 1435 1470 1640 1660 1722 1743 1960 1992 2009 2296 2324 2460 2490 2870 2905 2940 3320 3403 3444 3486 4018 4067 4305 4648 4920 4980 5740 5810 5880 6027 6806 6888 6972 8036 8134 8610 8715 9960 10045 10209 11480 11620 12054 12201 13612 13944 16072 16268 17015 17220 17430 20090 20335 20418 23240 23821 24108 24402 27224 30135 32536 34030 34440 34860 40180 40670 40836 47642 48216 48804 51045 60270 61005 68060 69720 71463 80360 81340 81672 95284 97608 102090 119105 120540 122010 136120 142926 162680 166747 190568 204180 238210 241080 244020 285852 333494 357315 408360 476420 488040 500241 571704 666988 714630 833735 952840 1000482 1333976 1429260 1667470 2000964 2501205 2858520 3334940 4001928 5002410 6669880 10004820 20009640
• Sum of all divisors σ(n): 72394560
• Sum of proper divisors (its aliquot sum) s(n): 52384920
• 20009640 is an abundant number, because the sum of its proper divisors (52384920) is greater than itself. Its abundance is 32375280

Bases of 20009640

• Binary: 1001100010101001010101000₂
• Hexadecimal: 0x13152A8
• Base-36: BWVJC

Squares and roots of 20009640

• 20009640 squared (20009640²) is 400385692929600
• 20009640 cubed (20009640³) is 8011573576671841344000
• The square root of 20009640 is 4473.2136099229
• The cube root of 20009640 is 271.4853662975

Scales and comparisons

• 20,009,640 seconds is equal to 33 weeks, 14 hours, 14 minutes.
• To count from 1 to 20,009,640 would take you about forty-nine 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 20009640 cubic inches would be around 22.6 feet tall.

Recreational maths with 20009640

• 20009640 backwards is 04690002
• 20009640 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 20009640's digits is 21
• More coming soon!