21980160
21,980,160 is an even composite number composed of four prime numbers multiplied together.
21980160 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of two hundred twenty divisors.
Prime factorization of 21980160:
210 × 34 × 5 × 53
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 3 × 3 × 3 × 3 × 5 × 53)See below for interesting mathematical facts about the number 21980160 from the Numbermatics database.
Names of 21980160
- Cardinal: 21980160 can be written as Twenty-one million, nine hundred eighty thousand, one hundred sixty.
Scientific notation
- Scientific notation: 2.198016 × 107
Factors of 21980160
Divisors of 21980160
- Number of divisors d(n): 220
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Complete list of divisors:
1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 27 30 32 36 40 45 48 53 54 60 64 72 80 81 90 96 106 108 120 128 135 144 159 160 162 180 192 212 216 240 256 265 270 288 318 320 324 360 384 405 424 432 477 480 512 530 540 576 636 640 648 720 768 795 810 848 864 954 960 1024 1060 1080 1152 1272 1280 1296 1431 1440 1536 1590 1620 1696 1728 1908 1920 2120 2160 2304 2385 2544 2560 2592 2862 2880 3072 3180 3240 3392 3456 3816 3840 4240 4293 4320 4608 4770 5088 5120 5184 5724 5760 6360 6480 6784 6912 7155 7632 7680 8480 8586 8640 9216 9540 10176 10368 11448 11520 12720 12960 13568 13824 14310 15264 15360 16960 17172 17280 19080 20352 20736 21465 22896 23040 25440 25920 27136 27648 28620 30528 33920 34344 34560 38160 40704 41472 42930 45792 46080 50880 51840 54272 57240 61056 67840 68688 69120 76320 81408 82944 85860 91584 101760 103680 114480 122112 135680 137376 138240 152640 162816 171720 183168 203520 207360 228960 244224 271360 274752 305280 343440 366336 407040 414720 457920 488448 549504 610560 686880 732672 814080 915840 1099008 1221120 1373760 1465344 1831680 2198016 2442240 2747520 3663360 4396032 5495040 7326720 10990080 21980160
- Sum of all divisors σ(n): 80250588
- Sum of proper divisors (its aliquot sum) s(n): 58270428
- 21980160 is an abundant number, because the sum of its proper divisors (58270428) is greater than itself. Its abundance is 36290268
Bases of 21980160
- Binary: 10100111101100100000000002
- Hexadecimal: 0x14F6400
- Base-36: D3400
Squares and roots of 21980160
- 21980160 squared (219801602) is 483127433625600
- 21980160 cubed (219801603) is 10619218291480068096000
-
The
square root of 21980160 is 4688.3003316767 -
The
cube root of 21980160 is 280.1196767321
Scales and comparisons
How big is 21980160?- 21,980,160 seconds is equal to 36 weeks, 2 days, 9 hours, 36 minutes.
-
To count from 1 to 21,980,160 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 21980160 cubic inches would be around 23.3 feet tall.
Recreational maths with 21980160
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