21700140
21,700,140 is an even composite number composed of six prime numbers multiplied together.
21700140 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of two hundred sixteen divisors.
Prime factorization of 21700140:
22 × 3 × 5 × 72 × 112 × 61
(2 × 2 × 3 × 5 × 7 × 7 × 11 × 11 × 61)See below for interesting mathematical facts about the number 21700140 from the Numbermatics database.
Names of 21700140
- Cardinal: 21700140 can be written as Twenty-one million, seven hundred thousand, one hundred forty.
Scientific notation
- Scientific notation: 2.170014 × 107
Factors of 21700140
Divisors of 21700140
- Number of divisors d(n): 216
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Complete list of divisors:
1 2 3 4 5 6 7 10 11 12 14 15 20 21 22 28 30 33 35 42 44 49 55 60 61 66 70 77 84 98 105 110 121 122 132 140 147 154 165 183 196 210 220 231 242 244 245 294 305 308 330 363 366 385 420 427 462 484 490 539 588 605 610 660 671 726 732 735 770 847 854 915 924 980 1078 1155 1210 1220 1281 1342 1452 1470 1540 1617 1694 1708 1815 1830 2013 2135 2156 2310 2420 2541 2562 2684 2695 2940 2989 3234 3355 3388 3630 3660 4026 4235 4270 4620 4697 5082 5124 5390 5929 5978 6405 6468 6710 7260 7381 8052 8085 8470 8540 8967 9394 10065 10164 10780 11858 11956 12705 12810 13420 14091 14762 14945 16170 16940 17787 17934 18788 20130 22143 23485 23716 25410 25620 28182 29524 29645 29890 32340 32879 35574 35868 36905 40260 44286 44835 46970 50820 51667 56364 59290 59780 65758 70455 71148 73810 88572 88935 89670 93940 98637 103334 110715 118580 131516 140910 147620 155001 164395 177870 179340 197274 206668 221430 258335 281820 310002 328790 355740 361669 394548 442860 493185 516670 620004 657580 723338 775005 986370 1033340 1085007 1446676 1550010 1808345 1972740 2170014 3100020 3616690 4340028 5425035 7233380 10850070 21700140
- Sum of all divisors σ(n): 78963696
- Sum of proper divisors (its aliquot sum) s(n): 57263556
- 21700140 is an abundant number, because the sum of its proper divisors (57263556) is greater than itself. Its abundance is 35563416
Bases of 21700140
- Binary: 10100101100011110001011002
- Hexadecimal: 0x14B1E2C
- Base-36: CX3XO
Squares and roots of 21700140
- 21700140 squared (217001402) is 470896076019600
- 21700140 cubed (217001403) is 10218510775075962744000
-
The
square root of 21700140 is 4658.3409063743 -
The
cube root of 21700140 is 278.9250450617
Scales and comparisons
How big is 21700140?- 21,700,140 seconds is equal to 35 weeks, 6 days, 3 hours, 49 minutes.
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To count from 1 to 21,700,140 would take you about five days!
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 21700140 cubic inches would be around 23.2 feet tall.
Recreational maths with 21700140
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