21372480
21,372,480 is an even composite number composed of five prime numbers multiplied together.
21372480 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of one hundred sixty-eight divisors.
Prime factorization of 21372480:
26 × 32 × 5 × 41 × 181
(2 × 2 × 2 × 2 × 2 × 2 × 3 × 3 × 5 × 41 × 181)See below for interesting mathematical facts about the number 21372480 from the Numbermatics database.
Names of 21372480
- Cardinal: 21372480 can be written as Twenty-one million, three hundred seventy-two thousand, four hundred eighty.
Scientific notation
- Scientific notation: 2.137248 × 107
Factors of 21372480
Divisors of 21372480
- Number of divisors d(n): 168
-
Complete list of divisors:
1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 30 32 36 40 41 45 48 60 64 72 80 82 90 96 120 123 144 160 164 180 181 192 205 240 246 288 320 328 360 362 369 410 480 492 543 576 615 656 720 724 738 820 905 960 984 1086 1230 1312 1440 1448 1476 1629 1640 1810 1845 1968 2172 2460 2624 2715 2880 2896 2952 3258 3280 3620 3690 3936 4344 4920 5430 5792 5904 6516 6560 7240 7380 7421 7872 8145 8688 9840 10860 11584 11808 13032 13120 14480 14760 14842 16290 17376 19680 21720 22263 23616 26064 28960 29520 29684 32580 34752 37105 39360 43440 44526 52128 57920 59040 59368 65160 66789 74210 86880 89052 104256 111315 118080 118736 130320 133578 148420 173760 178104 222630 237472 260640 267156 296840 333945 356208 445260 474944 521280 534312 593680 667890 712416 890520 1068624 1187360 1335780 1424832 1781040 2137248 2374720 2671560 3562080 4274496 5343120 7124160 10686240 21372480
- Sum of all divisors σ(n): 75721464
- Sum of proper divisors (its aliquot sum) s(n): 54348984
- 21372480 is an abundant number, because the sum of its proper divisors (54348984) is greater than itself. Its abundance is 32976504
Bases of 21372480
- Binary: 10100011000011110010000002
- Hexadecimal: 0x1461E40
- Base-36: CQ340
Squares and roots of 21372480
- 21372480 squared (213724802) is 456782901350400
- 21372480 cubed (213724803) is 9762583423453396992000
-
The
square root of 21372480 is 4623.0379622063 -
The
cube root of 21372480 is 277.5140484731
Scales and comparisons
How big is 21372480?- 21,372,480 seconds is equal to 35 weeks, 2 days, 8 hours, 48 minutes.
-
To count from 1 to 21,372,480 would take you about twelve minutes!
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 21372480 cubic inches would be around 23.1 feet tall.
Recreational maths with 21372480
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