21988890
21,988,890 is an even composite number composed of seven prime numbers multiplied together.
21988890 is an even composite number. It is composed of seven distinct prime numbers multiplied together. It has a total of one hundred ninety-two divisors.
Prime factorization of 21988890:
2 × 32 × 5 × 7 × 11 × 19 × 167
(2 × 3 × 3 × 5 × 7 × 11 × 19 × 167)See below for interesting mathematical facts about the number 21988890 from the Numbermatics database.
Names of 21988890
- Cardinal: 21988890 can be written as Twenty-one million, nine hundred eighty-eight thousand, eight hundred ninety.
Scientific notation
- Scientific notation: 2.198889 × 107
Factors of 21988890
Divisors of 21988890
- Number of divisors d(n): 192
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Complete list of divisors:
1 2 3 5 6 7 9 10 11 14 15 18 19 21 22 30 33 35 38 42 45 55 57 63 66 70 77 90 95 99 105 110 114 126 133 154 165 167 171 190 198 209 210 231 266 285 315 330 334 342 385 399 418 462 495 501 570 627 630 665 693 770 798 835 855 990 1002 1045 1155 1169 1197 1254 1330 1386 1463 1503 1670 1710 1837 1881 1995 2090 2310 2338 2394 2505 2926 3006 3135 3173 3465 3507 3674 3762 3990 4389 5010 5511 5845 5985 6270 6346 6930 7014 7315 7515 8778 9185 9405 9519 10521 11022 11690 11970 12859 13167 14630 15030 15865 16533 17535 18370 18810 19038 21042 21945 22211 25718 26334 27555 28557 31730 33066 34903 35070 38577 43890 44422 47595 52605 55110 57114 64295 65835 66633 69806 77154 82665 95190 104709 105210 111055 115731 128590 131670 133266 142785 165330 174515 192885 199899 209418 222110 231462 244321 285570 314127 333165 349030 385770 399798 488642 523545 578655 628254 666330 732963 999495 1047090 1157310 1221605 1465926 1570635 1998990 2198889 2443210 3141270 3664815 4397778 7329630 10994445 21988890
- Sum of all divisors σ(n): 75479040
- Sum of proper divisors (its aliquot sum) s(n): 53490150
- 21988890 is an abundant number, because the sum of its proper divisors (53490150) is greater than itself. Its abundance is 31501260
Bases of 21988890
- Binary: 10100111110000110000110102
- Hexadecimal: 0x14F861A
- Base-36: D3AQI
Squares and roots of 21988890
- 21988890 squared (219888902) is 483511283432100
- 21988890 cubed (219888903) is 10631876425147269369000
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The
square root of 21988890 is 4689.2312802847 -
The
cube root of 21988890 is 280.1567574615
Scales and comparisons
How big is 21988890?- 21,988,890 seconds is equal to 36 weeks, 2 days, 12 hours, 1 minute, 30 seconds.
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To count from 1 to 21,988,890 would take you about two 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 21988890 cubic inches would be around 23.3 feet tall.
Recreational maths with 21988890
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"Number 21988890 - Facts about the integer". Numbermatics.com. 2024. Web. 15 May 2024.
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The information we have on file for 21988890 includes mathematical data and numerical statistics calculated using standard algorithms and methods. We are adding more all the time. If there are any features you would like to see, please contact us. Information provided for educational use, intellectual curiosity and fun!
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