21399300
21,399,300 is an even composite number composed of six prime numbers multiplied together.
21399300 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 21399300:
22 × 32 × 52 × 13 × 31 × 59
(2 × 2 × 3 × 3 × 5 × 5 × 13 × 31 × 59)See below for interesting mathematical facts about the number 21399300 from the Numbermatics database.
Names of 21399300
- Cardinal: 21399300 can be written as Twenty-one million, three hundred ninety-nine thousand, three hundred.
Scientific notation
- Scientific notation: 2.13993 × 107
Factors of 21399300
Divisors of 21399300
- Number of divisors d(n): 216
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Complete list of divisors:
1 2 3 4 5 6 9 10 12 13 15 18 20 25 26 30 31 36 39 45 50 52 59 60 62 65 75 78 90 93 100 117 118 124 130 150 155 156 177 180 186 195 225 234 236 260 279 295 300 310 325 354 372 390 403 450 465 468 531 558 585 590 620 650 708 767 775 780 806 885 900 930 975 1062 1116 1170 1180 1209 1300 1395 1475 1534 1550 1612 1770 1829 1860 1950 2015 2124 2301 2325 2340 2418 2655 2790 2925 2950 3068 3100 3540 3627 3658 3835 3900 4030 4425 4602 4650 4836 5310 5487 5580 5850 5900 6045 6903 6975 7254 7316 7670 8060 8850 9145 9204 9300 10075 10620 10974 11505 11700 12090 13275 13806 13950 14508 15340 16461 17700 18135 18290 19175 20150 21948 23010 23777 24180 26550 27435 27612 27900 30225 32922 34515 36270 36580 38350 40300 45725 46020 47554 53100 54870 57525 60450 65844 69030 71331 72540 76700 82305 90675 91450 95108 109740 115050 118885 120900 137175 138060 142662 164610 172575 181350 182900 213993 230100 237770 274350 285324 329220 345150 356655 362700 411525 427986 475540 548700 594425 690300 713310 823050 855972 1069965 1188850 1426620 1646100 1783275 2139930 2377700 3566550 4279860 5349825 7133100 10699650 21399300
- Sum of all divisors σ(n): 75828480
- Sum of proper divisors (its aliquot sum) s(n): 54429180
- 21399300 is an abundant number, because the sum of its proper divisors (54429180) is greater than itself. Its abundance is 33029880
Bases of 21399300
- Binary: 10100011010000111000001002
- Hexadecimal: 0x1468704
- Base-36: CQNT0
Squares and roots of 21399300
- 21399300 squared (213993002) is 457930040490000
- 21399300 cubed (213993003) is 9799382315457657000000
-
The
square root of 21399300 is 4625.9377427717 -
The
cube root of 21399300 is 277.6300826693
Scales and comparisons
How big is 21399300?- 21,399,300 seconds is equal to 35 weeks, 2 days, 16 hours, 15 minutes.
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To count from 1 to 21,399,300 would take you about twelve hours!
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 21399300 cubic inches would be around 23.1 feet tall.
Recreational maths with 21399300
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